Having Manuel tell Luisa the story of his grandmother in Claribel Alegria’s “Granny and the Golden Bridge” gives the story a(n) tone.

impassioned
conversational
sinister
solemn

conversational

Explanation:

"Granny and the Golden Bridge" is a short story written by Claribel Alegria. Manuel tells Luisa the story of his grandmother in a "conversational tone." This means that it sounded like two persons were actually having a conversation with each other. It uses the words "you" and "I."

Such type of tone makes the readers feel more engaged in the story. It is quite obvious that the length of the sentences are also shorter. If ever there are long sentences, they are being broken.

So, this explains the answer.