If Jack bought 18 CDs last year when his income was $20,000 and he buys 19 CDs this year when his income is $25,000, then for Jack CDs are
A)an inferior good.
B)a normal good.
C)a substitute good.
D)a complementary good.
E)There is not enough information to answer this question.

Question

Quizplus · Accepted Answer

A normal good is one for which demand increases as income increases. Since Jack buys more CDs as his income rises, CDs are a normal good for him.

If Jack Bought 18 CDs Last Year When His Income