You need to ensure that you can activate the solution in Intranet

You have a SharePoint Server 2013 Service Pack 1 (SP1) server farm. The farm contains a site collection
named Intranet.
You upload a custom solution to the Solution Gallery of Intranet. You discover that you cannot activate the
custom solution. You need to ensure that you can activate the solution in Intranet.
What should you do?

A.
From Central Administration, start the Application Registry Service.

B.
From Windows PowerShell, run Start-Service -Name SPUserCodeV4.

C.
From Central Administration, create a new serviceapplication.

D.
From Central Administration, start the Microsoft SharePoint Foundation Sandboxed Code Service.

E.
From a command prompt, run stsadm.exe -o execadmsvcjobs

F.
From Windows PowerShell, run Start-Service -Name SPAdminV4

G.
From Central Administration, activate the Global Web Parts feature.

H.
From Windows PowerShell, run New-SPAccessServiceApplication -Name SandboxSolution Confirm:$true.

Explanation:
Enable sandboxed solutions on the farm (SharePoint Foundation 2013)
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Published: May 12, 2013
A sandbox is a restricted execution environment that enables programs to access only certain resourcesand
keeps problems that occur in the sandbox from affecting the rest of the server environment. Solutions that you
deploy into a sandbox, which are known as sandboxedsolutions, cannot use certain computer and network
resources and cannot access content outside the site collection they are deployed in. Because sandboxed
solutions cannot affect the whole server farm, theydo not have to be deployed by a farm administrator. If
sandboxed solutions have been enabled on at least one server in the farm, a site collection administrator can
deploy solutions to a run in a sandbox on any server in the farm.
By default, sandboxed solutions are disabled. Enable sandboxed solutions on every application server on
which you want to run sandboxed solutions.
For more information about sandboxed solutions, seeSandboxed solutions overview (SharePoint Foundation
2013).
Enable sandboxed solutions
Use the following procedure on each application server in your farm on which you want to enable sandboxed
solutions.
To enable sandboxed solutions by using Central Administration
Verify that you have the following administrative credentials:
You must be a member of the Farm Administrators group on the computer that is running the SharePoint
Central Administration Web site.
On the home page of the Central Administration Web site, in the System Settings section, click Manage
services on server.
On the Services on Server page, in the Server box, select the server on which you want to enable sandboxed
solutions.
In the Microsoft SharePoint Foundation Sandboxed Code Service row, in the Action column, click Start.
Repeat steps 3 and 4 for each server on which you want to enable sandboxed solutions.
To enable sandboxed solutions by using Windows PowerShell
Verify that you meet the following minimum requirements: See Add-SPShellAdmin.
Click Start, and then click All Programs.
Click Microsoft SharePoint 2013 Products.
Click SharePoint 2013 Management Shell.
At the Windows PowerShell command prompt, type the following command:
Start-Service -Name SPUserCodeV4
Repeat this procedure on every server on which you want to enable sandboxed solutions
http://technet.microsoft.com/en-us/library/ff535775.aspx