I would interpret it as how people only look at reality, not what's inside or what they can't see.
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
The correct answer is Option C
If you do not have future goals you will not have something to work twards. Inadvertently people are always making goals like finishing homework before watching tv, but specific knowledge biased goals help you achieve things for the long term.
The answer is ''the overall topic of the author's essay''