Final answer:
After the chrysalis forms, a pupa grows inside, transforming into a butterfly through metamorphosis. This process includes a significant reorganization of the larval structures into the adult form. The correct option is C. butterfly lays an egg inside.
Step-by-step explanation:
After the chrysalis forms, what happens is that a pupa grows inside. The insect goes through a process called metamorphosis where the larval caterpillar transforms into a butterfly. This stage follows hatching from an egg and feeding as a caterpillar, which primarily consists of rapid growth and molting. The pupal stage is a time of reorganization where structures of the caterpillar break down and the adult insect forms. After about four weeks, the fully developed butterfly emerges, ready to feed on nectar and eventually reproduce, completing its life cycle.
The stages of an insect's life cycle typically include the egg, larva, pupa, and adult stages, each looking different from the others. During the pupa stage, the insect does not eat or move as it experiences a remarkable transformation, with tissues and appendages of the larva reorganizing into the adult form. The correct option is C. butterfly lays an egg inside.