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:
All black is white.
Some white is grey.

Conclusions:
I. Some grey is black.
II. Some white is black.

A

Only conclusion I follows

B

Neither conclusion I nor II follows

C

Only conclusion II follows

D

Both conclusions I and II follow