Which statement or statements are implied by equilibrium conditions of the loanable funds market?

The quantity of savings is maximized, thus the quantity of investment is maximized.
Investment projects which use borrowed funds are guaranteed to be profitable even after paying interest expenses.
A loan is made at the minimum interest rate of all current borrowing.
A firm borrowing in the loanable funds market invests those funds with a higher expected return than any firm that is
not borrowing.