The correct answer is D. Spider.
Insects are a group of invertebrates that have six legs, three body segments, and two pairs of wings. They are the most diverse group of animals on Earth, with over 1 million known species.
Bed bugs are small, wingless insects that feed on blood. They are found in homes and other places where people sleep. House flies are small, flying insects that feed on decaying matter. They are found in homes, businesses, and other places where people live. Mosquitoes are small, flying insects that feed on blood. They are found in many parts of the world, and they can transmit diseases such as malaria, dengue fever, and yellow fever. Spiders are arachnids, which means they have eight legs and two body segments. They are found in many parts of the world, and they come in a variety of shapes and sizes. Some spiders are venomous, but most are not.
Spiders are not insects because they have eight legs, two body segments, and no wings. Insects have six legs, three body segments, and two pairs of wings.