As per the provisions of the Factories Act, 1948, match the items of List I with the items of List II and choose the correct answer:

List-I	List-II
a. Cool drinking water during hot season	1. 150 workers
b. Employment of safety officer	2. More than 250 workers
c. First aid box	3. More than 500 workers
d. Ambulance room	4. 1,000 or more workers

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

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

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

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

Answer: Option A