Statements: All books are pens.
Some pens are pencIIs.
Conclusions: Some pens are books.
II No pens are books.
III Some books are pencIIs.
IV. No books are pencIIs.

Options

A. I and III follow
B. Only I follows
C. Either I or II follows
D. Either III or IV and I follow

Answer

D

Explanation

I directly from .All books are pens.. III and IV are a complementary pair [ III does not follow definitely because of the rule: I+I= No conclusion]