Which of the following match is incorrect?

• A. 8th, 9th and 10th pairs of ribs - Do not articulate directly with the sternum but join the sixth rib with the help of hyaline cartilage.
• B. Glenoid cavity - Articulates with the head of the humerus to form the shoulder joint.
• C. Fibrous joint - Flat skull bones which fuse end-to-end with the help of dense fibrous connective tissues in the form of sutures to form the cranium.
• D. Increase in \[C{{a}^{++}}\] level - Leads to the binding of calcium with a subunit of troponin on actin filaments and thereby remove the masking of active sites for myosin.