Match the following Columns:

Column I	Column II
a. RTS	1. Sterilisation
b. Heating above 100°C	2. Pasteurisation
c. Temperature - 18 to 40°C	3. Asepsis
d. Cleanliness	4. Freezing

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

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

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

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

Answer: Option A