The correct option is A Man
The rib cage appears like a bony basket formed by the sternum (breastbone), thoracic vertebrae, and in mammals, 12 pairs of ribs. The rib cage protects the internal organs of the chest like the heart and the lungs. It also supports the chest wall, preventing it from collapsing. Each pair of ribs is attached dorsally to a separate vertebra. Of the 12 pairs of ribs, the first 7 are attached ventrally to the sternum; the next 3 are attached indirectly by cartilage; and the last 2, the floating ribs, have no attachments to the sternum. False ribs refer to the last five pairs of ribs. A rib is said to be false if it does not attach to the sternum (the breastbone).