which consists of keratinized cells? a hair b nails c stratum corneum d all apply.

which consists of keratinized cells? a hair b nails c stratum corneum d all apply.
Answer
Brief Explanations:
Hair is made of keratin - rich keratinized cells. Nails are also composed of keratinized cells. The stratum corneum, the outermost layer of the epidermis, consists of dead, keratinized cells.
Answer:
D. All apply.