Question

Clover picks a positive number. What is true about the opposite of her number?

Answer 1

The dark side of the opposite number might come through and negative, and make Clover feel bad.

Answer 2

if Clover picks a positive number, the the opposite of her number will be negative

The opposite of a number basically just means changing the sign...
examples :
-5.....opposite = 5
-2....opposite = 2
4....opposite = -4
3/5....opposite = -3/5