Which one of the following is called "The Beauty Bone"?

The clavicle or your collarbone is considered as the bone of beauty for its predominant position in the body. Most of the bones are covered with skin fat, while the clavicle bone is seen to stretch from the body outward. It is the only horizontal bone that is found in our body, forming the shoulder girdle along with the shoulder blade. Its position and shape give us some idea of a person's body alignment, and hence it justifies the title of the beauty bone.

It's kind of an elegant shape. Clavicles taper off, they look sort of like outstretched wings of a dove in flight, if you're a poetic sort. And if a woman has a shapely clavicle it means she has a good bone structure and a healthy amount of fat. If a woman has prominent collarbones, then they have become features. Features are defining, they require attention and admiration. Anything distinctive about a person could be something that attracts.