Refer to the Following:
the Estimated Demand for a Good $$\hat { Q } = 25 - 5 P + 0.32 M + 12 P _ { R }$$

Multiple Choice

Refer to the following:
The estimated demand for a good is

$$\hat { Q } = 25 - 5 P + 0.32 M + 12 P _ { R }$$
where Q is the quantity demanded of the good, P is the price of the good, M is income, and
$P _ { R }$ is the price of related good R.
-If the price of the good falls by $4, the quantity demanded will ________ by ________ units.

A) increase; 5 units
B) increase; 20 units
C) increase; 50 units
D) increase; 48 units
E) decrease; 12 units