Match the following columns

Column I	Column II
a. In a moderately asymmetrical distribution	1. Deviations are taken from median
b. Mean deviation is least when	2. QD < MD < SD
c. Quartile deviation is more suitable	3. Q3 - Q1/Q3 + Q1
d. Coefficient of quartile deviation is calculated by	4. In case of open end distributions

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

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

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

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

Answer: Option C