Two Statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:
Some pens are black.
No black is blue.

Conclusion:
I. No pen is blue.
II. Some pens are not black.

A

Only conclusion II follows

B

Both conclusions I and II follows

C

Only conclusion I follows

D

Neither conclusion I nor II follows