which is the best topic sentence for the first paragraph of an essay about \effects of exercise\? firstly…

which is the best topic sentence for the first paragraph of an essay about \effects of exercise\? firstly, if you eat unhealthy foods, you will gain weight. firstly, if you clean your room, your mind becomes more clear. firstly, an effect of exercise is a positive boost of ones mood.

which is the best topic sentence for the first paragraph of an essay about \effects of exercise\? firstly, if you eat unhealthy foods, you will gain weight. firstly, if you clean your room, your mind becomes more clear. firstly, an effect of exercise is a positive boost of ones mood.

Answer

Brief Explanations:

The topic is "effects of exercise". The first two options are about unhealthy foods and cleaning a room, which are off - topic. The third option directly mentions an effect of exercise (positive mood boost), making it relevant to the essay topic.

Answer:

Firstly, an effect of exercise is a positive boost of one's mood.