Which statement is true about a certificate authority (CA)?

Which statement is true about a certificate authority (CA)?

A.
An entity responsible for registering the private key encryption used in a PKI

B.
An agency responsible for granting and revoking public-private key pairs

C.
A trusted third party responsible for signing the public keys of entities in aPKIbased system

D.
A trusted third party responsible for signing the private keys of entities in aPKIbased system