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: Medicine
[{'content': 'Which of the following is true regarding the offspring of those with Huntington’s disease \nSelect and explain. \nA. Half of the offspring are at risk only if the affected parent is male, B. Half of the offspring are at risk only if the affected parent is female, C. Half of the offspring are at risk for the disease, D. Half of the offspring are at risk if either parent is symptomatic for the disease before age of 30', 'role': 'user'}, {'content': "Answer: C \nExplanation: As Huntington's disease is an autosomal dominant disease half of the offspring are affected . Age at which a patient becomes symptomatic is variable and has no effect on probability of transmitting the disease.", 'role': 'assistant'}]