Quaggas once lived in South Africa. They are now extinct. People hunted them for their hides and meat. Quaggas fed on grass, which people also used to feed their sheep and goats.

Based on these facts, what is the LEAST LIKELY reason the quaggas became extinct?
A) Temperatures changed.
B) They had no food to eat.
C) They had no space to live.
D) People hunted them too much.