Answer:
A sales territory is a defined area in which a single salesperson or group of salespeople work.
What are the choices given here? Anyway, if the question is whether the sentence "The couple looked closely at the exterior of the house, they noticed; the paint was in disrepair." uses correct punctuation, I shall answer that it does not.
It could possibly be: The couple looked closely at the exterior of the house; They noticed the paint was in disrepair.
