Question

what gives the reticular dermis its strength and resiliency? nerve endings elastic fibers capillary loops thick bundles of collagen fibers

Explanation:

The reticular dermis contains thick bundles of collagen fibers. Collagen is a protein that provides structural support and strength. These thick bundles contribute to the dermis' ability to withstand stress (strength) and return to its original shape (resiliency). Nerve endings are for sensation, elastic fibers help with stretching but not the main source of strength here, and capillary loops are for blood supply.

Answer:

D. Thick bundles of collagen fibers