Time left $0$:$17$:$57$

FIGURE $14-3$

Refer to Figure $14-3.$ The movement of the economy from $E_0$ to $E_1$ was likely caused by

Select one:

A$.$ a positive demand shock due to an increase in investment.

B$.$ a negative demand shock caused by fall in consumption.

C$.$ a positive supply shock caused by improved productivity.

D$.$ a negative supply shock caused by higher input prices.