Which of these insects have teeth?

Correct option is B

The correct answer is (b) Wasps and Beetles.
· Wasps and beetles are among the insects that have structures resembling teeth, used for biting, chewing, or tearing food. These are located on their mandibles, which are mouthparts that help them process solid food.
Information Booster:
· Butterflies: Have a proboscis, a tube-like mouthpart for sucking nectar, not teeth.
· Flies: Have sponging or piercing mouthparts, not teeth.
· Bees: Have mandibles for chewing and processing wax, but their primary mouthparts are designed for sucking nectar.