Markers of acute viral hepatitis caused by HBV: (A) IgM anti HBc Ag, (B) IgG anti HBc Ag, (C) IgM anti Hbs Ag, (D) IgG anti HBs Ag
Answer is A. In acute hepatitis following serological markers are present:

HBs Ag
Ig M anti HBc Ag (in recent infection) or IgG anti HBc Ag (in remote infection).
Hbe Ag (with high infectivity) or Anti Hbe Ag (with low infectivity).