This is the explanation:
A) A Maria -le gusta- comer el queso y zanahorias ( likes to)
B) A Gloria -le encantan- las zanahorias ( loves/likes)
C) A ti no -te encantan- las papas ( love/like)
D) A mi -me gusta- comer las papas y los frijoles ( Like to)
Rewrite the entire sentence replacing the indirect object with an indirect object pronoun.
Nosotros hablamos por teléfono con la <u>maestra</u>.
Answer : Nosotros le hablamos por teléfono.
Explanation: The indirect object is "la maestra", that is third singular person, so the indirect object pronoun has to be in the third singular person too, "le".
Hope this helps!