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) `