A message signal frequency `omega_(m)` is superpiosed on a carrier wave of frequency `omega_(c)` to gent an amplitude modulated wave (`AM`).The frequency of the `AM` wave will be
A. `omega_(m)`
B. `omega_(c )`
C. `( omega_( c) + omega_( m))/( 2)`
D. `( omega_( c) - omega_( m))/( 2)`