In amplitude modulation, sinusoidal carrier frequency used is denoted by $\omega_c$ and the signal frequency is denoted by $\omega_m$. The bandwidth $(\Delta \omega_m)$ of the signal is such that $\Delta \omega_m<< \omega_c$. Which of the following frequency is not contained in the modulated wave ?

Question

( A ) $\omega_m$
( B ) $\omega_c$
( C ) $\omega_c - \omega_m$
( D ) $\omega_m + \omega_c$