For a Demand Curve to Be Upward Sloping, the Good

Multiple Choice

For a demand curve to be upward sloping, the good would have to be an inferior good, and

A) the income effect would have to be larger than the substitution effect.
B) the income effect would have to be smaller than the substitution effect.
C) the income effect would have to be equal to the substitution effect.
D) the income effect and the substitution effect would have to be nonexistent.