Which of the following is the proper mapping?

A.
802.11 uses FHSS.

B.
802.11a uses DSSS.

C.
802.11b provides up to 1 to 2 Mbps.

D.
802.11b provides up to 52 Mbps.

Explanation:
Since DSSS sends data across all frequencies at once, it has a higher
data throughput than FHSS. The first WAN standard, 802.11, used FHSS, but as
bandwidth requirements increased DSSS was implemented. By using FHSS, the 802.11
standard can only provide a throughput of 1 to 2 Mbps. By using DSSS instead,
802.11b provides a data throughput of up to 11 Mbps.