The term 'zone of Inhibition' can best be described as:
A. the area around the outside of the petri dish where no bacteria has grown due to lack of inoculation.
B. the area surrounding an antibiotic disc where no bacteria growth has occurred due to the action of condensation.
C. the area around an antibiotic disc where the microbes grow.
D. the area surrounding an antibiotic disc where no bacteria growth has occurred due to the action of the antibiotic.