Answer:
C. an open-end fund
Step-by-step explanation:
An open end fund also known as mutual fund is a diversified investment portfolio that does not have a limit in terms of shares that can be issued. In an open end fund, when shares are purchased by investors, more shares are created likewise shares are taken out of circulation when they are sold.
Majority of open end funds - mutual funds can issue new shares at all times as per response to the demand by investors. Shares bought and sold in open end fund are priced daily based on their current net asset value (NAV) . Example of open end funds are hedge funds, mutual funds, exchange traded funds (ETFs)/etc.