When optimizing a standalone point-to-multipoint bridge installation with eight non-root bridges, which of the following RTS threshold and CWmin settings would be correct for the non-root bridges?

A.
RTS threshold = 4000, CWmin = 3

B.
RTS threshold = 1, CWmin = 4

C.
RTS threshold = 4000, CWmin = 5

D.
RTS threshold = 1, CWmin = 5