Choose the sentence in which the non-restrictive phrase appears in bold.
Mattie, whom I've known since preschool, is the only person I know at my new school.
My friend Mattie is the only person I know at my new school.
Mattie is my oldest friend and the only person I know at my new school.
The only person I know at my new school is Mattie--my oldest friend.

Respuesta :

Answer:

Mattie, whom I've known since preschool, is the only person I know at my new school.

Explanation:

Answer:

what he said

Explanation:

look down :)