Answer:
Index.
Explanation:
Mutual funds are a type of investment that takes money from many investors and uses it to make investments based on a stated investment objective.
An index fund is a type of mutual fund with a portfolio constructed to match or track the components of the market index. These are mutual funds whose holdings aim to track the performance of a specific stock market index. Index funds also track bonds, real estate, and other types of assets. These funds are lower cost than other types of funds.