What is the difference between TLS client settings preferred and preferred-verify?

What is the difference between TLS client settings preferred and preferred-verify?

A.
Verify will try and verify the domains certificate.

B.
TLS Verify will perform a reverse lookup on the receiving servers IP address.

C.
Verify will not allow TLS connections to be sent in the clear.

D.
Verify will try and verify the hostname match on the certificate.