Match List-I with List-II and select the correct answer:

List-I (Organic compound)	List-II (Use)
a. Butane	1. In the production of saccharin
b. Toluene	2. LPG fuel
c. Benzene	3. In dry cleaning
d. Urotropin	4. In the treatment of urological disease

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

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

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

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

Answer: Option B