Task: Class Definition Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes 'apolysis'?

A. The process in which the anatomical structures of the head are generated and organized. The head is the anterior-most division of the body.
B. Enables the transfer of acidic amino acids from one side of a membrane to the other. Acidic amino acids have side chains with a negative charge at pH 7.3.
C. A multicellular organismal process involved in the cyclical phases of growth (anagen), regression (catagen), quiescence (telogen), and shedding (exogen) in the life of a hair; one of the collection or mass of filaments growing from the skin of an animal, and forming a covering for a part of the head or for any part or the whole of the body.
D. The first process of molting, characterized by the detachment of the old cuticle from the underlying epidermal cells.

Answer: The first process of molting, characterized by the detachment of the old cuticle from the underlying epidermal cells.