<h3>Answer:</h3><h2>(D) They have chemical imbalance.</h2><h3>Explanation: </h3>
Anorexia nervosa often referred to simply as anorexia, is an eating dysfunction defined by low weight, the anxiety of increasing weight, and a great hope to be thin, occurring in food limitation. Several people with anorexia perceive themselves as overweight even though in actual they are underweight.
