In which of the following commodities, when a consumer spends so much that negative income effect overhelms the positive substitution effect so as the underlying demand curve is positively sloped?

In which of the following commodities, when a consumer spends so much

1.	In which of the following commodities, when a consumer spends so much that negative income effect overhelms the positive substitution effect so as the underlying demand curve is positively sloped?
A.	Inferior goods
B.	Superior goods
C.	Giffen goods
D.	Normal goods
Answer» D. Normal goods