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Ligaments are specialised connective tissues which connect bones together, hence if they are cut or broken the bone will be come unfixed.

1. (a) If broken bone will be come unfixed.
2. (b) In angular joint articulating surface of one bone is oval and convex whereas that of the other is elliptical and concave, it allows movement only in two directions e.g. Wrist.
3. (c) Fibrous joints are unmovable joints e.g. Sutures of skull.
4. (d) Cartilaginous joints have little motility due to disc of fibrocartilage between the articular ends.

Correct answer: (a) If broken bone will be come unfixed.

Solution

Ligaments connect bone to bone, so if they are damaged, the joint loses its stabilizing support and the bones can become unfixed. Option (a) matches this idea directly, while the others describe different joint types.

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