Question

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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

Answer 1

D is the answer hope it helped

Answer 2

A time line of the developments in modern mail service

Step-by-step explanation:

It will give background information and tell you all the other kinds of important events that happened.