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

List-I	List-II
a. Washing soda	1. Sodium Hydroxide
b. Caustic soda	2. Copper Sulphate
c. Neela thotha	3. Sodium Thiosulphate
d. Hypo	4. Sodium Carbonate

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

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

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

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

Answer: Option B