Match the following columns

Column I	Column II
a. Data are classified into	1. Classification
b. The first step in tabulation is	2. Columns, rows
c. The mid-point of class is obtained by	3. Classification of data according to location
d. Geographical classification means	4. By dividing the difference of upper and lower limits by 2

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

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

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

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

Answer: Option A