I believe the answer is individuals. The drug side effect is the result of the interaction from the substance contained by the drugs and the environment in our body. It means that the effect will be influenced by the individual's age, weight, height, gender, etc.
I'm not 100% sure but I believe the answer is B.
B. Because logos is persuasion through logic and fact. using facts and statistics is logos
Sentence 4 is structured differently than others
Answer:
High-functioning adults have been known to lose their will-power at the sight of a doughnut. So one of the most important tools for maintaining self-control is to change the environment (Duckworth et al 2016). Keep temptations hidden!
For young children, this might mean putting away a toy that is likely to cause conflict during a playdate; or avoiding the sweets aisle of the grocery store when you are shopping together.
For older children, it might mean keeping electronic distractions away from areas where children do homework. But you can go further with older kids: Teach them how to identify temptations on their own, and take the necessary action to eliminate them.
Kids who stay out of trouble — and achieve more — aren’t necessarily blessed with greater strength of character. They’re better at anticipating and avoiding situations that trigger impulsive behavior.
