Statements: All boys are girls. No books are boys.
Conclusions: I. Some books are girls. II. Some books are not girls. III. Some girls are books. IV. Some girls are not books.
1) Either I or II follows
2) Either III or IV follows
3) Either II or IV follow
4) Either I or II and IV follow
5) Either III or IV and II follow

Explanation

4, Either I or II, and IV follow