I am pretty sure 2 is correct but im not sure the exact difference
Answer:
D is the way to not to mean at all love it
Explanation:
1. Just like any addictive formula or drug Caffeine...
2. Every substance or formula like the varieties of drugs to foods has an different effect on you body just like caffeine...
3. Your brain works in different ways wether its to the way you respond to certain situations, or the amounts of something you consume
(Sorry there bad)