Which statement about digital certificates is false? a. digital certificates contain the owner's identification and a copy of the owner's public key. b. the recipient decodes the encrypted message by using the ca's public key. c. digital certificates authenticate that the public key belongs to the designated owner. d. digital certificates a user and a merchant to validate that their digital certificates were issued by an authorized and trusted third party before they exchange data. e. the ca verifies a digital certificate user's identity online.