**Core Concept**
Sacral meningomyelocele is a type of spinal dysraphism, characterized by a congenital defect in the sacral region of the spine, involving the meninges and spinal cord. This condition is associated with various neurological and orthopedic abnormalities. The underlying principle involves a failure of neural tube closure during embryogenesis.

**Why the Correct Answer is Right**
The correct answer is not provided, however, features of sacral meningomyelocele typically include sensory and motor deficits, bladder and bowel dysfunction, and orthopedic deformities such as clubfoot. The condition is often associated with other congenital anomalies, including hydrocephalus and Arnold-Chiari malformation.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific details of option A, it's challenging to provide a precise explanation.
**Option B:** Similarly, option B's details are not provided.
**Option C:** Option C's specifics are also not given.
**Option D:** Option D's details are not available for analysis.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that meningomyelocele is often associated with a tethered cord, which can lead to worsening neurological function if not addressed surgically. Early diagnosis and intervention are crucial for optimal outcomes.

**Correct Answer:** Correct Answer: D. Hydrocephalus is a common feature.