What is $$x_1 + x_2 + x_3 + x_4 + x_5 ?$$
I. $$x_3 = 20$$
II. $$x_1, x_2, x_3, x_4, x_5$$ are in arithmetic progression.

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.