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 rise in the anti-HBc immunoglobulin in a patient
indicates 
Select and explain. 
A. Acute infection, B. carrier state, C. prodromal phase, D. convalescence
A: Acute infection
Answer: A: Acute infection 
Explanation: None