In a semiconductor device, if Fermi level $$(E_{F})$$ is positioned at conductive band $$(E_{c})$$. Determine the Approximate probability of finding electrons in states at $$(E_{c} + kT)$$
(where K is Boltzmann constant and T is device temperature in Kelvin)

A

0.18

B

0.27

C

0.38

D

0.52