Which of the following is ventrally connected to the sternum with the help of hyaline cartilage?

5^th pair of ribs is ventrally connected to the sternum with the help of hyaline cartilage. The first seven pairs of ribs have a direct anterior attachment to the sternum by a strip of hyaline cartilage called costal cartilage.

The cartilages of the eighth, ninth, and tenth pairs of ribs attach to one another and then to the cartilages of the seventh pair of ribs. The eleventh and twelfth pairs of ribs are false ribs designated as floating (vertebral) ribs because the costal cartilages at their anterior ends do not attach to the sternum at all.