Estimated Demand for a Good Is $\hat { Q } = 4,800 - 16 P - 0.65 M - 1.5 P _ { R }$

Multiple Choice

estimated demand for a good is $\hat { Q } = 4,800 - 16 P - 0.65 M - 1.5 P _ { R }$ 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.The coefficient on P

A) violates the law of demand.
B) is negative as dictated by the law of demand.
C) should not be greater than one (in absolute value) .
D) should have the same sign as the coefficient on $P _ { R }$ .
E) both c and d