In designing space habitats, the amount of space required per person varies as a function of mission duration. For a six-month mission, ____ cubic meters per person is tolerable and ____ cubic meters is optimal.
A. 3, 15
B. 5, 17
C. 10, 20
D. None of the above
A. 3, 15
B. 5, 17
C. 10, 20
D. None of the above