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: Microbiology
A fourteen year old boy is admitted with history of fever, icterus, conjunctival suffusion and haematuria for twenty days. Which of the following serological test can be of diagnostic utility - 
Select and explain. 
A. Widal test, B. Microscopic Agglutination Test, C. Paul Bunnell test, D. Weil felix reaction
B: Microscopic Agglutination Test
Answer: B: Microscopic Agglutination Test 
Explanation: None