At Room Temperature KT Is About 0

Multiple Choice

At room temperature kT is about 0.0259 eV. The probability that a state 0.50 eV above the Fermi level is occupied at room temperature is:

A) 1
B) 0.05
C) 0.025
D) 5.0 * 10^-6
E) 4.1 * 10^-9