A radarreceiver has a detection SNR threshold of 10 dB for a 4 MHz bandwidthsignal at 300 MHzfrequency.If the transmit EIRP of the radar is 40 dBW andreceive $$\frac{G}{T}$$ is 10 $$\frac{dB}{K}$$, what is the minimum RadarCross Section (in dB-meter square) detectable at 10 km range? (Given : 10 log $$(4\pi)$$ = 11, 10 log(k) = -228.6, k is Boltzmannconstant).

A

$$-15.6 dB m*{2}$$

B

$$-12.6 dB m*{2}$$

C

$$-9.6 dB m*{2}$$

D

$$-5.6 dB m*{2}$$