When an earthworm secretes a slime layer to receive eggs and sperm and form a ''cocoon,'' this secretion is produced by the

A) annulations.
B) peritoneum.
C) clitellum.
D) nephridium.
E) prostomium.

Earthworm

A type of invertebrate belonging to the class Oligochaeta, known for its segmented body and role in aerating and enriching soil.

Clitellum

A thickened, glandular section of the body found in certain worms, like earthworms, important for reproduction.

Cocoon

A protective casing spun by the larvae of many insects (like moths and butterflies) and some other animals, where they undergo metamorphosis into their adult forms.