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 chairs are windows.
All windows are boards.

Conclusions:
I. All chairs are boards.
II. All boards are windows.

A

Neither conclusion I nor II follows.

B

Both conclusions I and II follow.

C

Only conclusion I follows

D

Only conclusion II follows.