If at constant temperature, for a reaction the change in enthalpy is positive and the change in entropy is negative, which one of the following statements is true:

A

It is spontaneous (exergonic) at all temperatures.

B

It is spontaneous only at temperatures below T - delta H/delta S.

C

It is spontaneous only at temperatures above T - delta H/delta S.

D

It is unspontaneous (endergonic) at all temperatures