Match the following columns

Column I	Column II
a. When Ep is equal to zero	1. Relative inelastic demand
b. When Ep is equal to one	2. Elastic demand
c. When Ep is greater than one	3. Unit elasticity
d. When Ep is less than one	4. Completely inelastic demand

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

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

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

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

Answer: Option A