The graph below depicts the dose response curves for three common bacteria and a newly discovered bacterium found in streams near certain agricultural properties
If all four of the bacteria species shown in the graph are equally likely to contaminate agricultural products at a dose of 102⁢ , regulating which of the following species would have the greatest effect in reducing the likelihood of illness in humans?
A) C. jejuni
B) E. coli
C) Salmonella
D) Newly discovered bacterium