What type of essay would be written in chronological order?

an essay explaining the results of an experiment
an essay summarizing the main points of a poem
an essay explaining the development of technology to the present day
an argument about global warming

What structure does the poet employ in the first stanza of "the second coming"? a) he gives examples that point to a problem of lost innocence in modern society. b) he warns of an effect that results from avoiding traditional customs. c) he compares and contrasts innocence and violence. d) he argues that society promotes its problems.