What is the maximum number of LUNs that can be assigned per ESX/ESXi host?

A.
128

B.
255

C.
127

D.
256

Explanation:
Configuration Maximums VMware? vSphere 4.0 and vSphere 4.0 Update 1, page 4.
Table 2. Storage Maximums
Fibre Channel
* LUNs per host 256