The correct option is C {1,3,5}
Sample Space (S) is the collection of all possible outcomes.
As Mansie rolls a six-sided fair die once, the possible outcome can be 1 or 2 or 3 or 4 or 5 or 6. Hence, the sample space, S={1,2,3,4,5,6}.
Mansie desires to roll an odd number. In the sample space (S), the odd numbers are 1, 3 and 5. Hence, the favorable outcomes are {1,3,5}.