What is the sum of the two positive integers a and b?
I. The LCM of a and b is 52
II. One of a and b is 13

A

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

B

if the statement II alone is sufficient to answerthe 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.