1. 

Statements: All branches are flowers. All flowers are leaves.

Conclusions:

I.   All branches are leaves.

II.  All leaves are branches.

III. All flowers are branches.

IV. Some leaves are branches.

A. None follows
B. Only I and IV follow
C. Only II and III follow
D. All follow

Answer: Option B

Explanation:

Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, it follows that 'All branches are leaves'. Thus, I follows. IV is the converse of this conclusion and so it also holds.