Answer:
d. layers of the epidermis but not the dermis
Step-by-step explanation:
From the given information we know that there is a wound but no blood. This means that the epidermis is surely damaged, because it is the top layer of the skin. Additionally, the epidermis is avascular, meaning it does not have any type of blood vessels. This information rules out letter a.
Underneath the epidermis is the dermis. However, this layer is vascular. This means it does have blood vessels, and if it becomes damaged, blood will come out. Hence, it cannot be letter c.
Then under the dermis is the subcutaneous layer. This layer is also vascular, which means it cannot be the answer either. Additionally, this layer could not be damaged if the dermis was not damaged. You would have to go through the epidermis and dermis first.