Use the Following Information to Answer the Questions Below

Use the following information to answer the questions below.
Mouse mutations can affect an animal's appetite and eating habits. The ob gene codes for a satiety factor, the hormone leptin. The db gene product, the leptin receptor, is required to respond to the satiety factor.
-Many obese humans produce normal or increased levels of leptin without satiety, so the search for healthy regulation of food intake should focus on

A) providing supplementary leptin.
B) inactivation of leptin.
C) overexpression of the leptin receptor gene.
D) eliminating carbohydrates from the diet.
E) inhibition of leptin receptors.