I believe it is the final sentence: I left for college when I was 18 (that was also the age at which I was married). This is because the parentheses also give information about another incident that took place at the time - his/her marriage.
Answer:
in my opinion it's letter c
Answer: A. Caught you
Explanation: When reading the excerpt you can see the alligator is annoyed and angry the dog continuously teased him. The dog would say "cone and get me" Meaning he wanted the alligator to chase him. When the alligator finally catches him he threatens to grind him into mince meat.
