What is the difference between two two-digit numbers?
I) The square of the first number is 16 times the second number
II) The ratio of the first number to the second number is 4 : 5

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 the statements I and II together 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.