Hello,
Here is your answer:
The proper answer to your question is option A "Adolescence". When a boy goes throughs purbity is called Adolescence!
Your answer is A.
If you need anymore help feel free to ask me!
Hope this helps!
42 cards is after his dog ate half, so before that would be 42 * 2 = 84.
Even before that, he bought 5 new baseball cards, so add that to the 84 cards and you have 84 + 5 = 89.
Fred started out with 89 baseball cards.