Is the standard deviation of the ages of students in class A greater than standard deviation of the age of students in class B ?
(I) The difference between the ages of any two students in class A is always more than one year.
(II) No student in class B is more than 6 months older than any other student.

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

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