Match the following columns

Column I	Column II
a. Process of assembling primary data is called	1. Primary data
b. Data originally collected for an investigation are known as	2. Collection
c. Most statistical analysis rests upon	3. Careful scrutiny
d. Secondary data should be used after	4. Secondary data

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