Help pls number 4 only

Which of the following describes a method of using chronological order?

What is one way that the author makes a distinction between the first transcontinental railroad and the first transcontinental passenger flights in 1936

Your essay should be short,just 250 words, and it can be written on any subject. it should contain an example of parallel structure, an example ofevery type of phrase and clause outlined in this lesson, an example of two independent clauses connected by asemicolon, and an example of a colon. if you are struggling to come up with an idea for an essay, consider writing itabout the themes present in one of the texts you have read already.