What Two Tests Have Been Mainstays in Identification Schemes for the Non-B-Hemolytic,catalase-Negative,gram-Positive

Multiple Choice

What two tests have been mainstays in identification schemes for the non-b-hemolytic,catalase-negative,gram-positive cocci?

A) Bacitracin and PYR
B) Hippurate hydrolysis and Optochin
C) Nitrate and PYR
D) Bile esculin and salt tolerance