A healthy nail is smooth, curved, translucent pinkish in color, and?

A healthy nail is characterized by its smooth texture, natural curvature, translucence, and a distinct pinkish hue, which is indicative of good blood circulation beneath the nail plate. When assessing the health of a nail, it is essential that it is free from any irregularities, including hollows or wavy ridges which can be signs of underlying health issues or poor nutrition. A nail that is without hollows or wavy ridges reflects a strong and well-maintained keratin structure, which is necessary for overall nail integrity and appearance.

This clarity in texture and form illustrates proper nail health, making option B the correct choice. The other choices highlight undesirable characteristics that do not align with the definition of a healthy nail, emphasizing the importance of a well-formed nail for both aesthetics and health.