ANSWER: None of the above
Explanation:
Neutralism describes the relationship between two species which do interact but do not affect each other. Mutualism is a close association between two species in which both the species benefit. However, some mutualisms are so intimate that the interacting species can no longer live without each other as they depend totally on each other to survive. Such close associations are called symbiosis. Familiar example of symbiosis is seen in pollination of flowers where flowering plants are cross pollinated by the bees which benefit by getting nectar from the plants and both cannot survive without the other.