All of the following are true of asymmetric cryptography, except:

options: A) it can provide authentication when the sender encrypts data with his or her own private key. B) a public key can be used for decryption only. C) asymmetric encryption uses public/private key pairs, with each user having his or her individual pair. Therefore, you need two keys for every user in the cryptosystem. D) after the receiver decrypts the message with the sender's public key, the receiver knows that it could only have come from the sender's private key.