Which modulation technique allows you to achieve a data rate of 54Mb/s in the 2.4GHz-band?

Which modulation technique allows you to achieve a data rate of 54Mb/s in the 2.4GHz-band?

A.
Complimentary Code Keying

B.
Differential Binary Phase Shift Keying

C.
DifferentialQuadrature Phase Shift Keying

D.
Quadrature Amplitude Modulation