Which approach should you recommend?

You are designing a SharePoint 2010 application. You need to design the application
according to the following requirements: ·The application must contain a workflow that can
be started manually through the SharePoint user interface or through a call to
SPWorkflowManager.StartWorkflow. .The workflow must not be associated with a specific
list or a document library. Which approach should you recommend?

A.
Set the Site Scope property in Workflow Settings to enable the workflow across the entire
site.

B.
Create a reusable declarative workflow

C.
Create a sequential site workflow.

D.
Create a sequential list workflow.