Answer:
A. a mutual fund
Step-by-step explanation:
A mutual fund -
It is a type of financial vehicle , where the money collected by the investors , is pooled and then further invested in securities , like the bonds or stock market is referred to as mutual fund .
Any investor can invest their money in the mutual funds , it is a indirect form of investing in the stock market .
The returns obtained by mutual funds are dependent on the stock market .
Hence , from the given information of the question ,
The correct option is A. a mutual fund .