Step-by-step explanation:
The correct answer is: Sophie hará eso en el futuro.
Sophie will do that in the future.
The verb we used here is HACER, meaning to do, to make. When it comes to this verb, it's a 2nd group's verb as it ends in ER. It's an irregular verb and in this sentence, it's in the third person singular form, in the future, indicative tense. When it comes to present participle, it's -- haciendo. When it comes to past participle, it's hecho.
An example: ¿Tomas café todos los días? Sí, lo hago todos los días.
Do you drink coffee every day? Yes, I do it every day.
¿Quieres mover la silla? Sí, lo haré.
Do you want to move the chair? Yes, I will do it.