Answer:
Friction is a force that always opposes all motion; it always acts in a direction exactly opposite to that in which an object is moving (or trying to move), and typically comes when the surface rubs or drags against another as it moves.
Explanation:
Character vs. Character, and Character vs. Nature.
The most common and the most delicious substance are chocolates. Chocolates have plenty of chemical substance that could calm your brain and affects your body. It has Phenylethylamine substance that is actually produced by our brain when we are interested in something or when we are in love with someone. Chocolates are healthy.
That is going to be C) adolescence because when one is an infant they don't know much and they are just learning, as a kid in our childhood. Kids just don't pay attention and want to do whatever. We would already know life skills as an adult so it is adolescence