For this case we can translate the sentence given as:
The two boys are tall. But José is taller than them.
Joseph is ____ tall than all three.
In Spanish, comparisons of inequality are expressed as:
(More, Less) + (Adjective, noun, adverb) + than
(Más, Menos) + (Adjetivo, sustantivo, adverbio) + que
Then, the sentence can be completed as:
José es más alto que los tres.
Answer:
Option A