When an insect touches the bristles on lobes of a veus flytrap, the lobes close

When an insect touches the bristles on lobes of a veus flytrap, the lobes close quickly, engulfing the insect. the movement of the the insect inside the lobes causes the flytrap to secrete digestive enzymes that kill the insect. which type of relationship does this describe.a: competitionb: parasitismc: predationd: commensalism