Answer:
The answer is option D.
Explanation:
A sales person whose main function is to find prospects or potential customers is a prospector. Many salespeople selling to consumers would be considered prospectors, including salespeople such as insurance or financial services, or cosmetic salespeople such as Avon or Mary Kay. A salesman calls companies.
Doctors today would cure the Bubonic plague with a consistent treatment of antibiotics.
Vitamins work with enzymes to initiate chemical reactions within cells. Vitamins plays an indirect role in catalysis, where in the beginning of the chemical reaction speeds up with the help of enzymes, in order to participate in catalytic reactions.