Solution:
Option 3: Both statements I and II are Correct, but statement II is not the correct explanation of statement I.
Explanation:
- Statement I: Lower jaw (mandible) is indeed the only movable joint in the skull. This joint is called the temporomandibular joint (TMJ), which allows for the movement necessary for chewing and speaking.
- Statement II: The point where two bones meet is indeed called a joint. This is a general definition applicable to all joints in the body, not just the one in the lower jaw.