Perfect Crystals of Carbon Monoxide (CO) Are Difficult to Prepare

Multiple Choice

Perfect crystals of carbon monoxide (CO) are difficult to prepare because the very small dipole moment allows a few molecules to align in a pattern like CO OC CO instead of CO CO CO. If such crystals were cooled to 0 K, what would be the value of their absolute entropy?

A) > 0
B) = 0
C) < 0
D) > 0, = 0, or < 0, depending on how carefully it was cooled
E) > 0 or = 0, depending on how carefully it was cooled