-
A
Dermis, epidermis, subcutaneous
-
B
Epidermis, dermis, subcutaneous (hypodermis)
-
C
Subcutaneous, dermis, epidermis
-
D
Dermis, subcutaneous, epidermis
Why this is the answer
From outermost to innermost, the skin layers are the epidermis (the outer protective layer you see), the dermis (the deeper living layer with blood vessels, nerves, glands, and follicles), and the subcutaneous layer, also called the hypodermis (the deepest layer of fatty tissue that insulates and cushions). Getting this order correct is fundamental skin anatomy. Many skin functions and service considerations depend on knowing which structures lie in which layer, so this ordering is a reliable exam fact.
Source: Scientific Concepts — Skin Layer Order