Final answer:
The preterite verb that fills in the blank is "Hicieron."
Step-by-step explanation:
The correct answer to fill in the blank in the sentence is B. Hicieron. The sentence, "¿Uds. _____ toda la tarea de ayer?" is asking, "Did you all do all of yesterday's homework?" The preterite form of the verb "hacer" (to do/make) for the subject "Uds." (you all) is "hicieron." This is the correct verb choice to complete the sentence.
Learn more about Spanish verb conjugation