Which among the following is a flat bone?

Ribs

The correct answer is Option (4) -Ribs

Among the options provided, the flat bone is:Ribs

Ribs are classified as flat bones in the human body. Flat bones are thin, flattened, and often curved bones that provide protection to underlying organs and serve as sites for muscle attachment. The ribs form the rib cage, which protects the thoracic organs, including the heart and lungs. Additionally, flat bones contribute to the production of red blood cells in the bone marrow. While the other options listed (ankle bones, pelvic bones, and wrist bones) may have some flat bone characteristics, ribs are the typical example of flat bones due to their thin and flat structure.