The reson you should know this is because it isnt all about weight. What if the person weighs 200 pounds.......it might not all be body fat a lot of it could e muscle
The answer is A because drug tolerance makes it so you have to take more and more drugs to get the effect you want. Meaning you are more likely to do too much to get your high and overdose.
The body reacts rapidly, release adrenaline throughout the body almost immediately
Try chewing some gum, of your choice,
don't use mouthwash for a bit (the alcohol can make your mouth drier)
reduce your caffeine intake, stay away from caffeinated drinks like coffee, and even soda.