What is one reason physical activity and diet are NOT listed as obesity on the etiological/public health view of leading causes of death?

a. Physical inactivity and poor diet do not contribute to obesity.
b. Obesity results from taking in fewer calories than are burned by exercise and normal daily activities.
c. Many individuals with poor diet and physical inactivity are not obese.
d. Physical inactivity contributes more to obesity than poor diet.