Answer:
The answer is C) Commensalism
Step-by-step explanation:
The reason is due to the fact that there is evidence in the paragraph describing the relation of two species. If you look in the last sentence of the paragraph, it says, "The relationship between 2 species that can be represented as +/0"
The symbol +/0 is actually saying/meaning one side is benefited while the other side is neutral or not benefited!
The picture shown bellow will help!
Commensalism = +/0 (One side is benefited while other isn't benefited or hurt)
Mutulaism = +/+ (Both sides benefit each other)
Parasitism = +/- (One side benefits while other is harmed)