Which of the following can be attributed to food preparation?
1. It is a broad topic involving all steps from obtaining raw ingredients to consuming food.
2. It is about cooking food.
3. The temperature is around 70°-85°C in poaching.
4. A sheet of newspaper is about 1,00,000 nanometres thick.

A. 1, 2 and 3

B. 1, 3 and 4

C. 2, 3 and 4

D. 1, 2 and 4

Answer: Option A