A client complains of low data rates on his computer. When you evaluate the situation, you see that the signal strength is -84 dBm and the noise floor is -96 dBm. The client is an 802.11ac client and connects to an 802.11acAP. Both the client and AP are 2×2:2 devices. What is the likely cause of the low data rate issue?

A. Weak signal strength

B. Too few spatial streams

C. Lack of support 802.11n

D. CAT5e cabling run to the AP