Given below are two statements : Statement I : Upper jaw is an immovable joint. Statement II : The cartilages are harder than bones. In the light of the above statements, choose the most appropriate answer from the options given below :

- Statement I: The upper jaw (maxilla) is firmly fused with the bones of the skull through sutures, which are types of fibrous joints that are immovable. The only movable joint in the skull is the temporomandibular joint which connects the lower jaw (mandible) to the skull. Therefore, the upper jaw is an immovable joint. This statement is correct. - Statement II: Cartilages are connective tissues that are generally softer, more flexible, and less rigid than bones. Bones are hardened by the deposition of calcium salts, making them much stronger and harder than cartilage. This statement is incorrect.