Which of the Following Statements Are True of the Epidermis

Which of the following statements are true of the epidermis (Select all that apply) ?

A) The entire epidermis is made of dead cells and is a very good barrier to pathogens.
B) Langerhans cells produce antibodies to foreign material.
C) Mitosis takes place in the stratum germinativum,the outermost layer.
D) Merkel cells are receptors for the sensation of pain
E) Most of the epidermal cells are keratinocytes.
F) The stratum corneum is made of keratin and collagen.
G) Keratin is resistant to chemicals such as acids.
H) Flaking of cells from the skin surface helps remove bacteria.