Why do some playwrights use meter?

Could someone me with this question?

2pointsread this passage: "don't worry about me," i said. "i'm not tired at all." oh no, i'm feeling dizzy. this is what they call passing out. don'tdo that. don't pass out. stay upright – stay awake. how does the difference between the character's spoken words and internalthoughts affect the story? oa. it establishes the setting. ob. it introduces a new character. c. it creates dramatic tension. d. it ties up loose ends.

If the author of the gift of the magi had made the reader aware of the gift jim had purchased in the beginning of the story , this would be an example of