You need to prevent only App1 from running during startup

You have a computer that runs Windows 7.
You discover that an application named App1 runs during the startup process.
You need to prevent only App1 from running during startup. Users must be allowed to run App1 manually.
What should you do?

A.
From the local Group Policy, modify the application control policy.

B.
From the local Group Policy, modify the software restriction policy.

C.
From the System Configuration tool, select Diagnostic Startup.

D.
From the System Configuration tool, modify the Startup applications.