A single of frequency 20 kHz and peak voltage of 5 V is used to modulate a carrier wave of frequency 1.2 MHz and peak voltage 25 volts. Choose the correct statement.

Modulation index = 5 , side frequency bands are at 21.2 kHz and 18.8 kHz.

Modulation index = 0.8, side frequency bands are at 1180 kHz and 1220 kHz.

Modulation index = 5, side frequency bands are at 1400 kHz and 1000 kHz.

Modulation index = 0.2, side frequency bands are at 1220 kHz and 1180 kHz.