Which two roles can be modified? (Choose two.)

A.
Administrator

B.
Network Administrator

C.
Datastore Consumer

D.
Read-Only

Explanation:

It is a common knowledge that you cannot modify Administrator role and grant whatever privileges you like.
Same is the case with read-only. This role is created solely for ready only purposes. So you are left with two viable options – Network administrator and Datastore consumer both of which can be modified to add or delete privileges according to your specifications.