The difference between HMAC algorithm and SSLv3 is that pad1 and pad2 are ________ in SSLv3 whereas ________ in HMAC.

The difference between HMAC algorithm and SSLv3 is that pad1 and pad2

1.	The difference between HMAC algorithm and SSLv3 is that pad1 and pad2 are ________ in SSLv3 whereas ________ in HMAC.
A.	NANDed, XORed
B.	Concatenated, XORed
C.	XORed, NANDed
D.	XORed, Concatenated
Answer» C. XORed, NANDed