Antimicrobial susceptibility testing for several isolates is…

Antimicrobial susceptibility testing for several isolates is shown in the image below (rows A-G). Antimicrobial concentrations and controls are marked in the bottom panel of the figure. The growth control is column 11, and the sterility control is in column 12. Examine the results shown for the isolate in row C. What is the best interpretation? Gray = growth, white = no growth.