The following are multiple choice questions (with answers) about medical knowledge.   **Question:** An 8-year-old boy is brought to the physician because of headaches for the past 2 weeks. His headaches tend to occur in the morning and are associated with nausea and vomiting. One month ago, the patient was admitted to the hospital because of fever, irritability, and neck rigidity, and he was successfully treated with antibiotics. His temperature today is 37.5°C (98.5°F). An MRI of the brain shows bilateral ventricular enlargement and enlargement of the subarachnoid space. Which of the following is the most likely explanation of the patient's condition?   (A) Increased CSF production by the choroid plexus   (B) Impaired CSF flow through the arachnoid granulations   (C) Impaired CSF drainage into the subarachnoid space   (D) Impaired CSF drainage into the fourth ventricle
['(B) Impaired CSF flow through the arachnoid granulations <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Increased CSF production by the choroid plexus \n (B) Impaired CSF flow through the arachnoid granulations \n (C) Impaired CSF drainage into the subarachnoid space \n (D) Impaired CSF drainage into the fourth ventricle <> possible answers', "  An 8-year-old boy is brought to the physician because of headaches for the past 2 weeks. His headaches tend to occur in the morning and are associated with nausea and vomiting. One month ago, the patient was admitted to the hospital because of fever, irritability, and neck rigidity, and he was successfully treated with antibiotics. His temperature today is 37.5°C (98.5°F). An MRI of the brain shows bilateral ventricular enlargement and enlargement of the subarachnoid space. Which of the following is the most likely explanation of the patient's condition? <> context@"]