A nurse is teaching about neural tube defects to a group of pregnant women. Which of the following disease processes should the nurse include as an example of a neural tube defect?

Rationale: A. Hydrocephalus can occur secondary to a neural tube defect but is not itself a neural tube defect. B. Spina bifida is a classic example of a neural tube defect, resulting from incomplete closure of the spinal column during fetal development. C. Cerebral palsy is a motor disorder caused by brain injury or abnormal brain development, not a neural tube defect. D. Muscular dystrophy is a genetic disorder affecting muscle fibers, unrelated to neural tube defects.