Analyze the following label on an influenza virus sample: A/California (H3N2).

• A. Level A virus, first identified in Texas, with hemoglobin type 3 and neuraminidase type 2
• B. Blood type A patient, from California, with hemagglutinin type 3 and neuraminidase type 2
• C. Blood type A patient, from California, with hemoglobin type 3 and neuraminidase type 2
• D. Influenza A virus, first identified in California, with hemagglutinin type 3 and neuraminidase type 2

Answer: (D)