Which types of requests are likely to be served the fastest?

Which types of requests are likely to be served the fastest?

A.
TCP_MISS

B.
TCP_NC_MISS

C.
TCP_HIT

D.
TCP_MEM_HIT

E.
TCP_RESCAN_HIT

Explanation:
http://www.alainfontaine.lu/blog/2009/01/stellar-wordpress-performance/