Q30,p3,d14. Which one of the following is true for asymmetric-key cryptography ?

(A) Private key is kept by the receiver and public key is announced to the public.

(B) Public key is kept by the receiver and private key is announced to the public.

(C) Both private key and public key are kept by the receiver.

(D) Both private key and public key are announced to the public. 

Answer A.