Given: The 802.11ac APs you have selected for your public access deployment support many of the PHY and MAC enhancements offered by the 802.11n and
802.11ac amendments. The AP is configured for a single-band (2.4 GHz) and only allows 20 MHz channels. The WLAN radio in the AP is a 3×3 802.11n chip that
supports two spatial streams.
What is the maximum MCS rate that could be supported by this AP?

A.
54 Mbps

B.
65 Mbps

C.
108 Mbps

D.
144 Mbps