Step-by-step explanation:
Mutualism are defined as interactions between organisms of two different species, in which each organism benefits from the interaction in some way.
Commensalism, in biology, a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
Parasitism, relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.
So the answer is mutualism