Answer:
The correct answer is D. The main purpose of an investment institution is to use deposited money to purchase stocks and bonds in order to make a profit.
Step-by-step explanation:
Investment institutions are organizations or companies whose main function is to attract clients so that they deposit their money in investment accounts, from which the company, through qualified professionals in the field, manages different investments in order to obtain economic gains for its clients (and of which the company will charge a commission). Thus, the investment institution takes the money of its clients and uses it to buy bonds, shares, mutual funds, etc., that is, to any financial instrument that it considers appropriate to obtain a financial income.