which channel plan delivers the proper coverage in a large lecture hall that requires four access points?

Under U.S. regulatory domain, which channel plan delivers the proper coverage in a large lecture hall that requires four access points?

A.
1, 4, 7, 11

B.
1, 4, 8. 11

C.
1, 6, 11, 1

D.
2, 4, 6, 8