For any of you who have n't seen it , give it a try . I ' m tired and mentally exhausted . My tonsils are still swollen and I wo n't have the money to get them looked at until Friday .

Select from:
(I) They are tired from no sleep .;
(II) None of the above choices .;
(III) They have a leg injury .;
(IV) Their tonsils are on fire .;
Q: Why is the narrator in so much pain ?
(IV)