What is the maximum amount of LUNS that a vSphere Host can have?

A.
128

B.
256

C.
It depends on whether the Host is using iSCSI or Fibre Channel SAN

D.
512

Explanation:
Configuration Maximums VMware vSphere 4.0 and vSphere 4.0 Update 1, page 4.

Storage Maximums

LUNs per host 256