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 20 years female has hepatosplenomegaly, fever, pallor and generalized lymphadenopathy. Lab test useful for diagnosis is/are -a) ESRb) Electrophoresisc) Parasite detection in aspirated) ELISAe) Routine haemogram 
Select and explain. 
A. acd, B. ace, C. cde, D. ade
B: ace
Answer: B: ace 
Explanation: None