Answer:
C.He is making a point about the ugly side of human nature.
Step-by-step explanation:
When Gulliver travels to the land of the Houyhnhnms, he encounters a race of intelligent horses. Their society is calm, ordered, peaceful and logical. They appreciate reason above all else. However, their admiration and celebration of reason causes them to suffer from some ugly consequences. The Houyhnhnms lack compassion, and they use the Yahoos in ugly ways. They also show no affection or attachment to their families, and rarely express any feelings. Swift tells us this story to make a point about the ugly side of human nature and present the dangers of a life with no passion.