Khapra beetle larvae were raised on basal diet to which was added increasing amount of cholesterol. The result is shown in the accompanying graph. It indicates

Options

A. Cholesterol is an essential dietary requirement
B. Growth of beetle is directly proportional to cholesterol concentration
C. Cholesterol concentration of `2mug//g` diet is optimum
D. Growth is inhibited when cholesterol concentration exceeds `2mug//g` of diet.

Answer

A