1.

Which of the following combinations of test results is NOT possible?

A. Vial B positive, vials C, F and H negative
B. Vials B and D positive, vials F and H negative
C. Vials A and E positive, vials C and D negative
D. Vials A and G positive, vials D and E negative
Answer» D. Vials A and G positive, vials D and E negative


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