With reference to the given figure, what is the value of c + d?
I. $$b + f = 80$$
II. $$a + b = 110$$

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 statementaloneis not sufficient.

D

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