Which one of the following is the correct description of a certain...

Immovable or fixed or fibrous joints are found between the skull bones. No movement occurs at these joints. So, parietal bone and the temporal bone of the skull are joined by fibrous joint. Invertebrates, the first vertebra is called atlas, while the second vertebra is axis. In humans, first seven pairs of ribs are called true rubs; $8^{\text{th }}, 9^{\text{th }}$ and $10^{\text{th }}$ pairs of ribs are false ribs while $11^{\text{th }}$ and $12^{\text{th }}$ pairs of ribs are called floating ribs. Glenoid cavity is a socket-shaped cavity in the scapula (shoulder bone) that holds the head of the humerus in a ball and socket joint.