How many men are required to complete the work in 40 days?
I. 8 men and 10 women can complete the work in 20 days.
II. 12 women can complete the work in 30 days.

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 statements alone is sufficient.

D

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