Which of the Following Lists Quantities That May Have Only $\circ$

Which of the following lists quantities that may have only positive values?

A) "K,Q,and S ^$\circ$ "
B) " $\Delta$ G, $\Delta$ H,and $\Delta$ S"
C) "ln K and ln Q"
D) "K and $\Delta$ G ^$\circ$ '
E) none of the above