Which of the following resources can be managed using resource pools?

A.
I/O

B.
Network

C.
Disk

D.
Memory

Explanation:
vSphere Resource Management Guide, ESX 4.0, ESXi 4.0, vCenter Server 4.0, page 35.
A resource pool is a logical abstraction for flexible management of resources. Resource
pools can be grouped into hierarchies and used to hierarchically partition available CPU
and memory resources.