What is the main idea of the Arch hunters?

Which of the following sentences refers to a conflict between characters in "two kinds"?

Which excerpt from "hills like white elephants" provides the most details about the main characters' lives outside the railway station? click here to read an excerpt.

Laugh and be merry, remember, better the world with a song,    better the world with a blow in the teeth of a wrong.    laugh, for the time is brief, a thread the length of a span.    laugh and be proud to belong to the old proud pageant of man. (laugh and be merry/john masefield/public domain) which of these is the main idea of the poem?