Use the passage from Harry Potter and the Sorcerer's Stone below to answer the question.

In the back of the shop, a boy with a pale, pointed face was standing on a footstool while a second witch pinned up his long black robes. Madam Malkin stood Harry on a stool next to him, slipped a long robe over his head, and began to pin it to the right length.

“Hello,” said the boy, “Hogwarts, too?”

“Yes,” said Harry.

“My father’s next door buying my books and mother’s up the street looking at wands,” said the boy. He had a bored, drawling voice. “Then I’m going to drag them off to look at racing brooms. I don’t see why first years can’t have their own. I think I’ll bully father into getting me one and I’ll smuggle it in somehow.”

Harry was strongly reminded of Dudley.

Harry was strongly reminded of Dudley.

“Play Quidditch at all?”

“No,” said Harry again, wondering what on earth Quidditch could be.

“I do – Father says it’s a crime if I’m not picked to play for my house, and I must say, I agree. Know what house you’ll be in yet?”

“No,” said Harry, feeling more stupid by the minute.

“Well, no one really knows until they get there, do they, but I know I’ll be in Slytherin, all our family have been – imagine being in Hufflepuff, I think I’d leave, wouldn’t you?

“Mmm,” said Harry, wishing he could say something a bit more interesting.

What purpose does this dialogue serve in the story?

It creates an emotional scene.
It uses flashback to present memories.
It reveals information about characters.
It moves the plot.

It reveals information about characters.

This dialogue between Harry and the other boy in the robe shop shows the personality of the other boy, such as his sense of entitlement and arrogance. It also reveals that the boy comes from a family who have all been in Slytherin house, providing insight into his background and potential future at Hogwarts. This dialogue helps to develop the characters and sets up possible conflicts or relationships for later in the story.