Answer:
huh what is the question????
In an essay it should only be one I'm pretty sure, but in a narrative as many as it takes to explain a lesson learned. If you were writing a book your conclusion would be whatever comes to you and whatever you feel the characters would do/say/feel.
Answer:
I am pretty sure that "one" is the othe pronoun.
Explanation:
One is like an impersonal pronoun, can be used for people or as an indefinite pronoun. Instead of saying stamps again, they use "one" to replace it. Hope that helps.