Fact 1: Astronauts require preserved food for extended flights. Fact 2: Astronauts travel into space aboard space shuttles. Given the two facts above, space shuttle travelers require what food for extended flights?

Choose from:
[i] layers of fat;
[ii] short-lived;
[iii] nutrients;
[iv] perishable;
[v] preserved;
[vi] little;
[vii] Proteins;
[viii] Dehydration;
The answer is:
[v]