The correct option is LIZARD AND FROG.
Predator refers to an animal which uses another animal as food. In the question given above, we are told that the insect is consumed by the frog and the lizard. This means that the frog and the lizard are the predators of insects.
Is there more for the question? Just because it has the prices there is still nothing about the amount.
Answer:
D. the answer is triangular