(Choose 1 answer)
In what order would a typical PKI infrastructure perform the following transactions?1) Receiver decrypts and obtains session key.
2) Sender requests receiver's public key.
3) Public key is sent from a public directory.
4) Sender sends a session key encrypted with receiver's public key.
A. 2. 1, 3, 4
B. 2, 3, 4, 1
C. 4, 3, 2, 1
D. 2, 4, 3, 1
