The correct option is D A- II, B- IV, C- III, D- I
Cimex are the bedbugs. They are obligate parasitic insects. They suck and feed in human blood. They belong to the Cimicidae family.
Pediculus is the genus of louse. Lice are obligate parasites. They live on the body of warm blooded animals. They feed on the blood of the host.
Romalea guttata is the lubber grasshopper. They have small wings which cannot be used for flying. They are found in varied sizes and colours. They feed on the other insects and are found in open fields.
Lepisma is silverfish or fish moth. It is a small and wingless insect. They belong to the order Thysanura. They have hard scales or plates. They are called as silver fish due to the presence of silver plates.
Thus, the correct answer is option D.