Answer:
3
Explanation:
let's say we have candidates A, B, and C
we can choose:
A and B
A and C
B and C
any others, such as "C and A" would be the same as one already chosen (in this case, "A and C")
how i figured this out:
1. go through each possibility with A in the mix
A and B
A and C
2. same thing but for B, noting that A and B is already there so "B and A" doesn't work
B and C
3. same thing for C, noting that "C and A" and "C and B" are already taken
i am thus left with my answers