Which Statement Best Describes the Life Cycle of an Epidermal

Which statement best describes the life cycle of an epidermal cell?

A) New epithelial cells in both the stratum basale and stratum corneum push older cells up to the outer surface where they die and slough off.
B) New epithelial cells in the stratum basale keratinize and slough off.
C) New epithelial cells in the stratum corneum undergo mitosis approximately every 2 weeks to replace dead cells.
D) New epithelial cells in the stratum basale push older cells upward; as the cells move up layer by layer, they toughen and die.