Which of the following is the middle, vascular layer of the skin?

Question

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The Dermis is the thickest, middle, and vascular (containing blood vessels) layer which supplies nutrients and oxygen to the epidermis.
The Epidermis is the most external and avascular (a lack of blood vessels) layer of the skin.
The Hypodermis, also known as the subcutaneous layer, is the deepest layer of the skin.
Please see the diagram above as a visual reference for the anatomy of the skin referenced in the question above.
 11ec0fb7_27fe_bb40_95f0_a32649f0e6f2_NR0002_00 Source: http://library.open.oregonstate.edu/aandp/chapter/5-1-layers-of-the-skin/

Which of the Following Is the Middle, Vascular Layer of the Skin