Answer C. Research shows processed foods can be unhealthy.
Explanation: where essays requiring research are concerned, this topic is too broad because I am able to find thousands of sources when conducting a simple library or Internet search.
The serotonin is a chemical neurotransmitter in the brain responses to keep the "happy mood" in humans, so-called, the "the molecule of happiness". Low levels of serotonin may produce serious problems like depression, anxiety, memory low-self esteem, irritation and so on. When a lover has a low serotonin level in his brain, his mood and general behavior can be affected in great ways. Young people may not be aware of the great-negative consequences of the decreased levels of serotonin and a treatment should be carry out. Depression and anxiety can lead to terrible outcomes in someone's life.
A sound of thunder tho i am not very sure why this one
The conflict is your own pride can overcome your emotions which in the end leads to the death of himself.
Not an example would be C :)