Usually the exposition is where you meet the character and get introduced to the problem.
Go to google because google is intelligent more than us so go to google and tell it
-Just sayi’n don’t get mad
Dear Sally,
Recently I’ve been having family issues. My brothers aren’t getting along causing my parents to move my younger brother in my room. He doesn’t keep his side clean at all and everything he does is weird. I’m older and want more privacy! My parents don’t understand where I’m coming from. Get back to me soon.
From, (your name)
Answer:
A. Knows / was past tense