This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Which of the following is not a feature of congenital hypothyroidism 
Select and explain. 
A. Thyroid agenesis, B. Microcephaly, C. Wide open anterior fontanelle, D. Drooling
B: Microcephaly
Answer: B: Microcephaly 
Explanation: Causes of microcephaly include infections, malnutrition or exposure to toxins.
Symptoms vary and include intellectual disability and speech delay. In severe cases, there may be seizures and abnormal muscle functionality.
There is no cure for microcephaly. Treatment involves supportive care, symptom management and close monitoring.