Final answer:
The papillary layer is the deepest layer of the dermis that supplies oxygen and nutrients to the skin. The option (C) is correct.
Step-by-step explanation:
The deepest layer of the dermis that supplies oxygen and nutrients to the skin is the papillary layer. The papillary layer is located just below the epidermis and contains sensory receptors, blood vessels, and dermal papillae.
These structures provide nutrients to the skin cells and help strengthen the connection between the epidermis and dermis. Therefore, option (C) is correct.