Which train is moving with a greater speed?
(I) A train P of length 300m crosses a man in 18 seconds,
(II) Another train Q of length 250m crosses a bridge of length 350m in 20 seconds.

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.