Respuesta :
Answer:
⇒A) They have homologous structures because they have a common ancestor.
Explanation:
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They have homologous structures because they have a common ancestor is the reason horses and mountain goats have hooves.
What are homologous structure?
Homologous structures are physical structures or that are the same or similar in organisms that have common ancestor but the structures serve different functions or are use differently in other organisms.
Example is the biscep of arm found in both humans and animals.
Therefore, They have homologous structures because they have a common ancestor is the reason horses and mountain goats have hooves.
Learn more about homologous structure from the link below.
https://brainly.com/question/7904813