Answer:
Option C, ensure that mating occurs between members of the same species.
Explanation:
Courtship is a special form of behaviour that is performed by both  the male and female organism belonging to a common species so that fertilization is established in female organism. Â
This special behaviour helps the two organism of opposite gender to identify the right mating partner for them. Â
This essential to ensure that two organism belonging to the same species must mate together in order to produce fertile and viable offspring. Â
Hence, option C is correct