Which of the following arteries supplies blood to the breast?

The internal thoracic artery is the correct choice for supplying blood to the breast. It runs along the inner surface of the rib cage and gives rise to several branches, including the medial mammary branches, which directly nourish the breast tissue. This artery is particularly important in providing oxygenated blood to the anterior thoracic wall, including the chest and breast regions.

In contrast, the femoral artery primarily supplies blood to the lower limbs and is not involved in providing blood to the breast. The subclavian artery, while it does send branches to the upper limb and the thoracic region, is not the main source of blood supply specifically for the breast. The radial artery is mainly a supply source for the forearm and hand, making it unrelated to breast circulation. Thus, the internal thoracic artery is the key vessel in this context.