Answer:
10 different choices
Step-by-step explanation:
This is a combination problem: we need to make groups of 3 people among 5 people, and the order of the people inside a group doesn't matter (does not make a different group).
If the total number of people is 5 and we need groups of 3, this is a combination of 5 choose 3:
C(5,3) = 5!/(3!*2!) = 5*4/2 = 10
Sarah has 10 different choices
