Please help I will give 10 points and brainliest

I know the whole question doesn't show, and I'm sorry. It says "What bacterial species can be eliminated as possibilities fot the bacteria responsible for Anna's infection? Explain your reasoning"

Also I know I put it in Biology but it's Biomedical Sciences

Bacterial species that can be eliminated as possibilities for the bacteria responsible for Anna's infection are the ones that are Gram-positive, since we found out that the bacteria affecting Anna was Gram-negative. Streptococcus pneumonia, Streptococcus pyrogenes, Bacillus megaterium, and Micrococcus luteus can be eliminated for the bacteria responsible for Anna's infection since they are Gram-positive.

Explanation:

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."