I NEED THIS NOW PLEASE Which item would it be most important to include in an essay about the history of the mail system?

A picture of a postal carrier making deliveries of mail
A sidebar on the history of the envelope
A story of a lost letter finally being delivered
A time line of the developments in modern mail service

Which sentence features a correctly identified compound pronoun in a prepositional phrase? a)she and i will be at the park on tuesday, waiting for mariah and them. b)the gift grandmother brought was for me and him. c)everyone is so sure that he'll be late after traveling with peter and maria. d)after they visit the grand canyon, tianna and mom are going to a spa.