High Salt Concentrations Limit the Growth of Microbes Adapted to Freshwater

Multiple Choice

High salt concentrations limit the growth of microbes adapted to freshwater conditions because

A) salt prevents microbes from using oxygen as an electron acceptor during aerobic cellular respiration.
B) high salt concentrations increase the temperature of the environment above the range at which most microbes can survive.
C) freshwater is a hypotonic solution and microbes living in freshwater do not have a need for mechanisms to reduce water loss.
D) a high salt concentration leads to a sharp decline in the pH of the environment.