An address of your house
A date of when you wrote it
Dear Sir/Madam
From or Yours Sincerely
Paragraphs
First Person
It can be past, present or future tense
It can be formal or informal
Answer:
You research to find out information on a subject.
Explanation:
The purpose of researching is to find out more about a subject. For example: If you wanted to research the soviet union for a history project you would look it up online or in books so you could find out more about the subject.
I would say D because it gives an answer with sequence and follows along with the other points such as
-first
-second
-third
-? (fourth)
-finally