What are the first two bytes of a MD5 hash called?

What are the first two bytes of a MD5 hash called?

A.
salt

B.
magic

C.
magic bytes

D.
encrypted bytes

Explanation:
See http://www.insidepro.com/eng/passwordspro.shtml#200
The MD5 hash begins with the $1 signature, followed by the salt ($ and up to 8 characters), followed by a $ and the actual hash.
The DES hash begins with a 2 Byte salt, followed by the actual hash.