The main idea is found by looking at the general idea of the text you are reading, what is it about? What does it mention?
Lieutenant is not a part of the main clause, and it is an address to a person that is inserted into the sentence. It must be therefore separated by comas on both sides: the correct answer is a.
Answer:
I believe he means that in the Caribbean people died so young that he imagines it so often. He thinks he needs to make any happy/good moment last so he remembers that.
Explanation:
To become a better reader, entertainment, depends on what your reading it can be to help u get advise, to reasearch a topic, to learn new things,