Why did horses develop longer-lasting teeth over time?

A.The environment became drier.
B.They evolved from carnivores to herbivores.
C.The diversity of vegetation increased.
D. The horse developed a longer muzzle

I think its A idk though

1 answer

The correct answer is C. The diversity of vegetation increased. As horses evolved from small browsing animals to larger grazing animals, they needed longer-lasting teeth to cope with the tougher, more abrasive vegetation they were consuming.