The answer for this problem is B
The best answer is D.
Hormones are chemical messengers secreted mostly into blood and also extracellular fluid by specialized tissue of the endocrine system and affect the functioning of other tissues or cells.
Most hormones circulate in blood and come in contact with essentially all cells, but a particular hormone will only affect a limited number of cells, which are termed as target cells to that hormone.
A target cell responds to a particular hormone because it bears receptors for that hormone.
For example the red blood cells have receptors for the hormone called insulin which is produced by the pancreas. The red cells are able to take in glucose when their receptors bind to insulin.
The weakest died out and only the intelligent and strong survived to pass on the most useful traits, determining the way a species evolved - growing more intelligent or athletic as a result of these patterns.
Answer: D, because in the text it said "pay for her influential impact".
I hope it helped if what i said made sense.. :D