**Core Concept**
Skull sutures are fibrous joints that allow for growth and flexibility in the skull during infancy and childhood. The lapsed union of skull sutures refers to the premature closure of these sutures, which can lead to various clinical consequences.

**Why the Correct Answer is Right**
The premature closure of skull sutures is often associated with conditions that affect bone growth and development, such as craniosynostosis. Craniosynostosis is a congenital disorder characterized by the premature fusion of one or more of the skull sutures, leading to abnormal skull shape and potential complications. The premature closure of skull sutures can also be caused by conditions such as rickets, hypothyroidism, and certain genetic syndromes.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because while it is a condition that affects bone growth, it is not directly related to the premature closure of skull sutures.
**Option B:** This option is incorrect because it is a condition that primarily affects the face and palate, rather than the skull sutures.
**Option C:** This option is incorrect because it is a condition that primarily affects the bones of the hands and feet, rather than the skull sutures.

**Clinical Pearl / High-Yield Fact**
Premature closure of skull sutures can lead to increased intracranial pressure, visual disturbances, and other complications. It is essential to identify and manage conditions that may lead to premature suture closure to prevent these potential complications.

**Correct Answer:** C. Crouzon syndrome.