Allison and Gail Both Are Studying for a Final Exam

Multiple Choice

Allison and Gail both are studying for a final exam. Both have a goal of attaining a grade of 91 or better. Gail studied 6 hours and made a grade of 92. Allison studied for 9 hours and also made a grade of 92.
-Which of the following statements is true?

A) Gail is more efficient than Allison.
B) Allison is more efficient than Gail.
C) Gail is more effective than Allison.
D) Allison is more effective than Gail.
E) Gail and Allison are equally efficient.