The Economy's Supply Curve for Saving (Financial Capital) Shows

The economy's supply curve for saving (financial capital) shows

A) the difference between nominal and real interest rates.
B) the relationship between the flow of saving and the stock of financial assets.
C) how the economy's flow of saving changes with advances in technology.
D) how the economy's desired flow of saving varies with changes in the interest rate.
E) how the economy's stock of capital varies with the interest rate.