Which antiseptic is most effective Penicillin, Neomycin, and Streptomycin with E-Coli, Bacillus subtilis, and K-riz?

penicillin

Explanation:

From 50 tested E. coli isolates, all of them (100%) were resistant to penicillin and erythromycin, followed by 49 (98%) to nalidixic acid, 47 (94%) to cephalexin, 43 (86%) to amoxicillin, 42 (84%) to ampicillin, 37 (74%) to ciprofloxacin, 32 (64%) to tetracycline, 27 (54%) to cefixime and 18 (36%) to gentamicin.

answer; i believe the answer is hydraulic action;