Answer: Shipping containers are used to haul cargo on ships, trains, and trucks.
Explanation:
Choice 3 because the word "they're" is reffering to they are but "they are" does not make sence in the sentence...!!! hope this helps :)
Prologue Prologue gives us an insight about the main part of the story.
Even though there aren't any underlined words, you can still clearly see that the pronoun used is third person. This is because The narrator is talking about Mr. Phillips, and is not using pronouns like "I" and "we", which would be first person, or "you" and "you're", which would be second person.
