For the given Amplifier Circuit find the input cutoff frequency. FET parameters are $$g_{m} = 4 mA/V, C_{gs} = 4 pf, r_{ds} = 40 K Ω, C_{gd} = 2pF$$

A

35.5 MHZ

B

45.5 MHZ

C

90.5 MHZ

D

10.5 MHZ