The minimum intensity of light to be detected by human eye is \[{{10}^{-10}}W/{{m}^{2}}\]. The number of photons of wavelength \[5.6\times {{10}^{-7}}m\] entering the eye, with pupil area \[{{10}^{-6}}{{m}^{2}}\], per second for vision will be nearly

• A.            100
• B.            200
• C.            300
• D.            400