Match List-I (Industrial process) with List-II (Industry with which associated) and select the correct answer:

List-I	List-II
a. Cracking	1. Rubber
b. Smelting	2. Petroleum
c. Hydrogenation	3. Copper
d. Vulcanisation	4. Edible fats

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

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

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

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

Answer: Option B