Consider the Following Sequence of Events: Price Level $\uparrow$ $\Rightarrow$ Demand for Money

Consider the following sequence of events: price level $\uparrow$$\Rightarrow$ demand for money $\uparrow$$\Rightarrow$ equilibrium interest rate $\uparrow$
$\Rightarrow$ quantity of goods and services demanded $\downarrow$
 This sequence explains why the

A) money-supply curve is vertical.
B) aggregate-demand curve shifts leftward in response to a monetary injection.
C) aggregate-demand curve shifts rightward in response to a monetary injection.
D) aggregate-demand curve slopes downward.