Question

which ancestor of the modern-day horse is also the closest common ancestor to parahippus?
epihippus
hypohippus
miohippus
calippus
orohippus

Explanation:

In horse evolution, Miohippus is the direct ancestor that gave rise to both Parahippus and the lineage leading to modern horses, making it their closest common ancestor. Other options like Epihippus, Orohippus are earlier ancestors, while Hypohippus and Calippus are later or side branches not linked as the common ancestor of both Parahippus and modern horses.

Answer:

Miohippus