**Core Concept**
Face presentation is a rare type of fetal presentation where the baby's face is the presenting part, accounting for approximately 1 in every 600 births. This occurs when the fetal head is flexed and the chin is tucked into the chest, causing the face to become the presenting part.

**Why the Correct Answer is Right**
The most common congenital anomaly associated with face presentation is **Meningomyelocele (Spina Bifida)**. This condition occurs when the neural tube fails to close properly during fetal development, resulting in the exposed spinal cord and meninges. The abnormal fetal positioning and the presence of a meningomyelocele can cause the face to become the presenting part due to the pressure exerted by the exposed neural tissue and the associated soft tissue and bone deformities.

**Why Each Wrong Option is Incorrect**
**Option A:** Cephalopelvic Disproportion is not directly associated with face presentation, but rather with a difficult vaginal delivery due to the large size of the fetal head in relation to the maternal pelvis.
**Option B:** Anencephaly is a congenital anomaly where the fetus is born without parts of the brain and skull, but it is not typically associated with face presentation.
**Option C:** Hydrocephalus, characterized by an accumulation of cerebrospinal fluid in the brain, can cause fetal head enlargement, but it is not commonly linked to face presentation.

**Clinical Pearl / High-Yield Fact**
In cases of suspected face presentation, a detailed ultrasound examination and fetal MRI may be necessary to evaluate the presence of associated congenital anomalies, such as meningomyelocele or anencephaly.

**Correct Answer: D. Meningomyelocele (Spina Bifida)**