Choose the most correct statement containing the parameters which control the size of the target echo.
Transmitted power, antenna effective area, transmit and receive losses, RADAR cross section of the target, range to target.
Height of antenna, power radiated, size of target, receiver gain, pulse width.
Power radiated, antenna gain, size of target, shape of target, pulse width, receiver gain.
Magnetron gain, antenna gain, size of target, range to target, wave-guide loss.