A carrier A cos ct is modulated by a signal f(t) = 2 cos 104. 2 t + 5 cos 103. 2 t + 3 cos 104. 4 t, then the bandwidth of the FM signal will be (Given that, kf = 15 103 Hz per volt)

A carrier A cos ct is modulated by a signal f(t) = 2 cos 104. 2 t + 5

1.	A carrier A cos ct is modulated by a signal f(t) = 2 cos 104. 2 t + 5 cos 103. 2 t + 3 cos 104. 4 t, then the bandwidth of the FM signal will be (Given that, kf = 15 103 Hz per volt)
A.	170 kHz
B.	190 kHz
C.	210 kHz
D.	150 kHz
Answer» C. 210 kHz