The entropy of any substance at any temperature above absolute zero is called the: Select the correct answer below: a. absolute entropy
b. Third Law entropy
c. standard entropy
d. free entropy
e. none of the above

b. Third Law entropy  

Explanation:

Third law entropy: In physics, the term "third law entropy" or "the third law of thermodynamics" states that the specific entropy of a particular system at "absolute zero" is considered as a "well-defined constant". It occurs because any system at "zero temperature"  tends to exists or persists in its "ground state" in order for the entropy to be determined or described only by the "degeneracy" of the given ground state.

In the question above, the correct answer is option b.