Answer:
The answer is B.
Step-by-step explanation:
A Prezygotic Barrier as a reproductive barrier can be described as the probability of no fertilization from the reproduction of the two species or the result of a sterile offspring that does not have the ability to reproduce.
According to this description, the correct answer is B in which two reproduction of the horse and donkey produce an offspring hybrid mule that does not have the ability to reproduce naturally.
I hope this answer helps.