What is true concerning this publisher’s Signature Policy?

Consider the following:

What is true concerning this publisher’s Signature Policy?

A.
Only packages from this publisher must have at least one valid signature.

B.
All manifests from this publisher must have a cryptographic signature.

C.
All newly installed packages must have at least one valid signature.

D.
Signed and unsigned packages from this publisher can be installed.

Explanation:
Signature Policy: verify

Verify that all manifests with signatures are validly signed, but do not require all installed packages
to be signed.
This is the default value.