Final answer:
Gulliver considers the Yahoo the most unteachable of all animals because they possess qualities that make them resistant to learning.
Step-by-step explanation:
Gulliver considers the Yahoo as the most unteachable of all animals because they possess qualities that make them resistant to learning.
Yahoos are described as being wild, savage, and having violent tendencies. They are unable to reason, communicate, or engage in civilized behavior. They act solely on their instincts and basic desires, making it impossible for them to learn or be educated.