I would say overproduction. Not sure though. Hope this helps!
The medication would be the controlled variable, the factor that remains constant.
B. producer because most autotrophs are green plants use light for energy.
Eat foods that are high in fiber. Fiber helps stimulates the muscles in your small intestine that help you digest food better. Probiotic foods like yogurt as well as fresh fruits and vegetables also help carry beneficial bacteria to your small intestine to help prevent the accumulation and growth of harmful bacteria.
The first option for 1 and the second option for 2