The correct option is C S = {1, 2, 3, 4, 5}
Sample Space–––––––––––––––
Collection of all possible outcomes
If Allen spins the spinner once, the outcome can be 1 or 2 or 3 or 4 or 5.
∴ Sample Space= S={1,2,3,4,5}, i.e., option (c.) is the correct one.