Answer: A, B, C, and D private equity investment funds mainly realize profits by exiting projects and choose the right time to realize the equity of the invested companies.

There are three main exit methods: (1) Listing transfer or listing transfer of shares.

Initial public offering (IPO) is the preferred exit method for private equity investment funds; the National Small and Medium Enterprises Share Transfer System (also known as the "New Third Board") established in 2012 provides a new channel for the exit of private equity investment.

(2) Equity transfer.

When a company is not listed, shares are transferred to others to exit the company. For a limited liability company, shares can be transferred to existing shareholders, which is called an internal transfer. Shares can also be transferred to people other than existing shareholders, which is called an external transfer.

.

(3) Liquidation and exit.

Mainly in the case of project investment failure, the investee ends its operations, and the private equity investment fund exits through the liquidation of the investee.

There are two main situations: bankruptcy liquidation and dissolution liquidation.