The correct option is
D mutualism - both species are harmed
Predation is one organism using another organism as food. Commensalism is an interaction where one organism benefits while the other is unaffected, for eg. clown fish and the sea anemone. Ammensalism is where one organism is harmed and the other is unaffected, for eg. antibiotics produced by some fungi. Mutualism is a relationship where both the organisms involved benefit from the relationship, for eg. flowers and the bee.