Which systems can be members of the same Power Enterpri…

Which systems can be members of the same Power Enterprise Pool?

A.
E850 and 750

B.
E870 and E880

C.
S822 and S824

D.
E880 and 795

Explanation:
http://www.ibm.com/support/knowledgecenter/POWER8/p8ha2/systempool_cod.htm