which account(s) can the Oracle Clusterware processes run for the Linux platform?

Under which account(s) can the Oracle Clusterware processes run for the Linux platform?

A.
only the root account

B.
only the Grid Infrastructure owner account

C.
only the database software owner account

D.
some under the Grid Infrastructure owner account and some under the root account

E.
some under the database software owner account and some under the root account

Explanation:
Because Oracle Clusterware works closely with the operating system, system
administrator privileges are required for some installation tasks. In addition, some Oracle
Clusterware processes must run as the special operating system user, root.
Oracle Database 2 Day + Real Application Clusters Guide