All else constant, an increase in the incomes of consumers in the market for diamonds would cause the supply of diamonds to increase

The figure above shows the loanable funds market. The equilibrium real interest rate is ________, and the equilibrium quantity of loanable funds is ________

A) 4 percent; $1.5 trillion B) 4 percent; $2.5 trillion C) 6 percent; $2.0 trillion D) 8 percent; $1.5 trillion E) 0 percent; $3.5 trillion

Which of the following statements is TRUE?

A) The long-run aggregate supply curve is upward sloping. B) The long-run aggregate demand curve is upward sloping. C) The short-run aggregate supply curve is vertical. D) The long-run aggregate supply curve is vertical.