Answer the following question: Fact 1: Astronauts require preserved food for extended flights. Fact 2: Most of the Shuttle foods are preserved by dehydration, which saves weight and storage space. Given the two facts above, astronauts require what food for extended flights?

OPT:
1). Echinoderm..
2). layers of fat.
3). dehydrated.
4). fresh.
5). hand picked.
6). nutrients.
7). frozen.
8). hydration.
Answer:
3).