Answer:
1/10 and C
Explanation:
You wouldn't have a 9/10 because that is too high. It can't even possibly be 3/10. You have a 2/5 chance of getting one grape treat. Then, it would become 1/4 chance. That would make the chances of getting both very small. 1/10th is the only reasonable one.
There is only 2 choices that it can land on. That means it would be half chance of getting either. Only 0.5 or C is 1/2 or 0.5 of half.