During RF verification, some 5 GHz clients are unable to connect to certain APs, while other 5 GHz
clients can connect to all APs. What may prevent some clients from connecting?

A.
some clients may not support the UNII‐2 Extended band

B.
some clients may not support OFDM modulation

C.
some clients may not support TPCv2

D.
some clients may not support CCXv5