Which is true about channel 6 Wifi

a.

2.437 GHz center frequency, 2.426-2.448 GHz frequency range, and 20 MHz bandwidth.

b.

2.412 GHz center frequency, 2.401-2.423 GHz frequency range, and 20 MHz bandwidth.

c.

2437 MHz center frequency, 2426-2448 MHz frequency range, and 40 MHz bandwidth.

d.

2412 MHz center frequency, 2.401-2.423 MHz frequency range, and 40 MHz bandwidth.

e.

2462 MHz center frequency, 24512473 MHz frequency range, and 20 MHz bandwidth.