In a college, the number of students enrolled in both the physics course and the zoology course is how much less than the number of students enrolled in neither?
I) There are 40 students enrolled in the physics course
II) There are 50 students enrolled in the zoology course

A

if the statement I alone is sufficient to answer the question.

B

if the statement II alone is sufficient to answer the question.

C

if both the statements I and II are sufficient to answer the question but neither statement alone is sufficient.

D

if both the statements I and II together are not sufficient to answer the question and additional data is required.