The correct option is B.
Mutual Fund is the sum of contributions in money delivered by natural and legal persons to a corporation or administrator, so that it invests in different types of financial instruments that are public offering values or even goods, with the aim of achieving a profit, which is then shared among all who made a contribution.
Unlike savings, the amounts invested in mutual funds do not have a guaranteed profit, since mutual funds run the risk that the investments made do not deliver the expected return. Therefore, the profit may be less than expected or you may even lose part or all of the money invested.