A Catheter Tip Is Received in the Microbiology Laboratory for Culture

A catheter tip is received in the microbiology laboratory for culture. At 24 hours, the sheep blood agar plate is growing 7 colonies of a gram-positive cocci in chains that are alpha-hemolytic, catalase-negative, bile solubility negative, and esculin/PYR -/-. The next step in the process is

A) report the results as <15 colonies of viridans Streptococcus.
B) no further workup unless requested by the physician.
C) screen the organism for oxacillin and vancomycin resistance.
D) verify when the most recent blood cultures were drawn and their results.