A signal of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal is /are :

Question

$\begin{array}{1 1} 2\;MHz\;only \\ 2005\;kHz,and \;1995\;kHz \\ 2005\;kHz,2000\;kHz\;and 1995\;kHz \\ 2000\;kHz\;and\;1995\;kHz \end{array}$