What is the purpose of the Safe Checks option in a Nessus configuration?

What is the purpose of the Safe Checks option in a Nessus configuration?

A.
Enables secure scanning over an encrypted tunnel

B.
To prevent the use of plugins which may have a negative effect on the network being scanned

C.
To prevent the use of plugins which may leave the Nessus server vulnerable during the scanning process

D.
When validating a Nessus configuration file, the nessusd process will not be interrupted