The correct option is
D a- q, b- t, c- s, d- r, e- p
Mutualism is the relationship in which each individual benefits from the activity of the other.
Competition is a contest between organisms, animals, individuals, groups, etc., for territory, a niche, or a location of resources, for resources and goods, mates, for prestige, recognition, awards, or group or social status, for leadership.
Parasitism is a relationship between species, where one species, the parasite, benefits at the expense of the other, the host.
Predation is a biological interaction where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked). Predators may or may not kill their prey prior to feeding on them, but the act of predation often results in the death of its prey and the eventual absorption of the prey's tissue through consumption.
Commensalism is a relationship between two organisms where one organism benefits from the other without affecting it.
Therefore, the correct answer is option C.