which power supply modules should be connected to power circuit A to achieve N+N power redundancy?

Given the c7000 power supply configuration shown, which power supply modules should be
connected to power circuit A to achieve N+N power redundancy?

A.
4, 5, 6

B.
2, 4, 6

C.
1, 2, 3

D.
1, 3, 5

Explanation:
AC Redundant