Answer:
The correct answer is the third answer. "It helps us move and perform our daily activities."
Answer: but where is the text?
The answer is A. your last name and page number
In the letter particularly, last name usually put as an introduction before the initial content of the letter, so it will be better if created with header.
For page that contains page number, the header is created to give a pointer on what the page number means/indicates
I think the answer would be D. Hope this helps
