Answer: A. Sugar is a nutrient that the body uses as a source of energy; alcohol and tobacco are not.
Step-by-step explanation:
Its a straight forward question if you paid attention, Too much suagr can be unhealthy but It does help the body in many way, Alcohol only slightly increases D.O.S.E most of the time in the brain and fed the body nicotine which is very bad for the body and serves little to none good to the body