Given the following parameters, select the correct equation for the modulated carrier signal. AmT3V,Ac-3v, fm-5500Hz, fc-100MHz, -0, -o a. S(t) 3[1+1.08 cos(2Tt5500t)] cos(2Tt1 00E6t) o bst)-3[1+1 cos(2n5500t)] cos(2 100E60 c.s(t) 31+6.5 cos(2T3500t)] cos(2T100t) d. s(t)-6.5[1+0.93 cos(2n1 00t)] cos(2100E3t) Select the true statement regarding Amplitude Modulation (AM) a. An increase in message amplitude, Am, results in a higher AM Index, . b. An increase in message amplitude, Am, results in an increase in occupied frequency bandwidth. c. As the message frequency increases, the occupied frequency bandwidth decreases. O d. Over-modulation occurs when the carrier wave amplitude, Ac is greater than the message wave amplitude.Am