If the percentage change in the price of a good is less than the resulting percentage change in the quantity demanded of that good, then the demand for that good is:

If the percentage change in the price of a good is less than the resulting percentage change in the quantity demanded of that good, then the demand for that good is:
A.unit elastic.
B.elastic.
C.inelastic.
D.perfectly inelastic.
正确答案：elastic.