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: Dental
[{'content': 'An 8 month old female has history of kernicterus. On sudden movement of the  baby’s neck, the following features were seen abduction and extension of the arms, opening of hands and adduction of arms in front of the body.\nWhich reflex is elicited in this infant? \nSelect and explain. \nA. Moro’s reflex, B. Startle reflex, C. Asymmetric tonic reflex, D. Parachute reflex', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The Moro reflex is elicited by supporting the infant in a semierect position and then allowing the infant’s head to fall backwards onto the examiner’s hand. A normal response consists of symmetric extension and abduction of the fingers and upper extremities, followed by flexion of the upper extremities and an audible cry. An asymmetric response can signify a fractured clavicle, brachial plexus injury, or hemiparesis. Absence of the Moro reflex in a term newborn is ominous, suggesting significant dysfunction of the CNS.', 'role': 'assistant'}]