500
Greg knocked at the door softly. When it opened, an angry face looked back at him. Greg was frightened, so he muttered an apology and started to leave. "Oh, you're selling candy for school, " the man said. Then he smiled and added, "Sorry to be rude. I thought you were someone else. I'd love to buy some!"
What is the point of view and tell how you know.
What is Third Person limited because the narrator is not a character in the story, but the story is told from Greg's point of view.