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
A 25 year old man with congenital cyanotic hea disease repos to emergency with history of headache. On examination there is systolic murmur best heard on the left side of the sternum in the fouh intercostal space; the second sound is not split. Temperature is 37.5degC. What is most likely diagnosis - 
Select and explain. 
A. Coical vein thrombosis, B. Pyogenic septicemia, C. Cerebral abscess, D. Encephalitis
C: Cerebral abscess
Answer: C: Cerebral abscess 
Explanation: Ans. is 'c' i.e., Cerebral abscess Brain abscess is frequent complication of cyanotic congenital hea disease, TOF.