AIIMS November 2011 – MCQ 180

Diagnostic criteria for diabetes mellitus is?
A. Fasting blood glucose > 100 and post prandial > 140
B. Fasting blood sugar > 125 and 2 hr posprandial blood sugar > 199
C. HbA1c > 5.5%
D. ?

Please contribute to the discussion by posting the answer with references and pointing out the errors in the question!