Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

A friend has asked you to explain the differences between open-end and closed-end funds. Which of the following will you most likely include in your explanation?
Option A:Closed-end funds are unavailable to new investors.
Option B:When investors sell the shares of an open-end fund, they can receive a discount or a premium to the fund’s net asset value.
Option C:When selling shares, investors in an open-end fund sell the shares back to the fund whereas investors in a closed-end fund sell the shares to others in the secondary market.

Answer: C