Suppose That the Energy Difference Between Adjacent Energy Levels for an Oscillator

Multiple Choice

Suppose that the energy difference between adjacent energy levels for an oscillator in an Einstein solid is $\varepsilon=$ $0.005 \mathrm{eV}$ . We would expect the average energy of this oscillator when it is in contact with a reservoir at room temperature to be

A) negligible.
B) smaller than $\frac{1}{2} k_{B} T$ .
C) about equal to $\frac{1}{2} k_{B} T$ .
D) about equal to $k_{B} T$ .
E) significantly larger than $k_{B} T$ .
F) One doesn't have enough information to tell.