Match the following:

a. For a given 10 percent change in price, demand changes by zero percent	1. e > 1
b. For a given 10 percent change in price, demand changes by 5 percent	2. e = 1
c. For a given 10 percent change in price, demand changes by 10 percent	3. e < 1
d. For a given 10 percent change in price, demand changes by 20 percent	4. e = 0

A. a-1, b-2, c-3, d-4

B. a-4, b-3, c-2, d-1

C. a-3, b-1, c-2, d-4

D. a-2, b-3, c-1, d-4

Answer: Option B