What is the first term of the arithmetic progression?
I) The sum of the first 10 terms of the arithmetic progression is 85
II) The sum of the first 20 tenns of the arithmetic progression is 370

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.