Helo ,My name is Hieu

Read this excerpt from tim o’brien‘s “ambush” “i had already pulled the pin on a grenade. i had come to a crouch” which literary device is most clearly shown in this excerpt?

Gulliver's attempt to imitate the houyhnhnms gulliver to accept himself as he is causes gulliver to hate himself and other humans improves gulliver's character causes gulliver to be patient with people's problems next

What is the independent cause in this sentence? "if the poem is about going mad when love is lost, what would happen if love didn't die? "