Which bone forms the back of the skull above the nape?

The occipital bone is the correct answer because it is the bone that forms the posterior portion of the skull, specifically situated above the nape of the neck. This bone provides structure and support to the back of the skull and contains the foramen magnum, which is the opening that allows the spinal cord to connect to the brain. The occipital bone plays a crucial role in protecting the brain and supporting the head.

The other bones mentioned serve different functions and are located in different areas of the skull. The frontal bone is found at the front of the skull, forming the forehead. The parietal bones are located on the sides and top of the skull, contributing to its dome-like shape. The temporal bones are situated at the sides and base of the skull, near the ears. Understanding the specific locations and functions of each of these bones helps in grasping their anatomical significance.