The Supply Curve for Loanable Funds Is Upward-Sloping Because

The supply curve for loanable funds is upward-sloping because

A) lenders are more willing to lend at lower, rather than higher, interest rates.
B) lenders are more willing to lend at higher, rather than lower, interest rates.
C) borrowers are more willing to borrow at lower, rather than higher, interest rates.
D) borrowers are more willing to borrow at higher, rather than lower, interest rates.