Question

the whitish region of a nail bed that is considered to be the active area of the nail bed is referred to as the:
a collagen regions
b lunula
c stratified region
d sebum region

Explanation:

The lunula is the whitish, crescent - shaped area at the base of a nail. It is the active area of the nail bed where new nail cells are formed. Collagen is a protein found in connective tissues. A stratified region refers to a layer - like structure. Sebum is an oily substance secreted by sebaceous glands.

Answer:

B. lunula