The current WLAN standard of a company has been upgraded from IEEE 802.11b to IEEE 802.11n. Due to this upgradation, what will be the change in the data rate?

A.
11 Mbps to 54+ Mbps

B.
11 Mbps to 256 Mbps

C.
11 Mbps to 54 Mbps

D.
11 Mbps to 128 Mbps