The Mueller-Hinton Medium Used in the Kirby-Bauer Assay Contains No

The Mueller-Hinton medium used in the Kirby-Bauer assay contains no para-aminobenzoic acid (PABA, normally found in most media) because it:

A) causes an increase in bacterial lag time
B) interferes with the diffusion of penicillin and penicillin-like drugs
C) creates a false bacteriostatic effect
D) polymerizes streptomycin drugs and their derivatives
E) inhibits sulfa antibiotics testing