EXERCISE 4A: CHOOSE THE BEST RESEARCH THESIS

Choose the best working thesis for the proposed research paper.

THESIS A:

There are many causes of anorexia nervosa.
THESIS B:
Anorexia nervosa has both emotional and social causes which work hand-in-hand.
THESIS C:
Anorexia nervosa occurs most often in young women aged 13 - 22.