The major insect body parts are

A) head, cephalothorax, and abdomen.
B) cephalothorax, midsection, and abdomen.
C) head, thorax, and abdomen.
D) head, pyothorax, and metathorax.
E) head, cephalothorax, and genitalia.

Cephalothorax

The fused head and thorax found in certain arthropods, such as spiders and crustaceans.

Pyothorax

Accumulation of pus in the pleural cavity caused by infection, which can lead to compromised lung function and requires medical intervention.

Metathorax

The third and last of the three segments in the thorax of an insect, carrying the second pair of wings and the second pair of legs.