Use the following general linear demand function below:Qd = a + bP + cM + dPRwhere Qd = quantity demanded, P = the price of the good, M = income, PR = the price of a good related in consumption.If c = 15 and d = 20, the good is

A. a normal good.
B. an inferior good.
C. a substitute for good R.
D. a complement with good R.
E. both a and c


Answer: E

Economics

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