After interviewing the customer to understand its wireless client requirements, you determine that 802.11b must be enabled to support legacy clients within a mixed-mode environment. What recommendation will have the greatest mitigation on the effects of 802.11b clients on the rest of the network? 

Answer options:

A. Restrict the use of OFDM modulation.
B. Make 11 Mb/s the lowest mandatory rate.
C. Enable a separate SSID for 802.11b clients.
D. Enable short preamble.

B