Which of the Following Statements About the Pathogenic Strain 0157:H7

Multiple Choice

Which of the following statements about the pathogenic strain 0157:H7 of E. coli is true?

A) It differs from the harmless laboratory strains of E. coli by only a few genes.
B) It shares several genes with other pathogenic bacteria, suggesting extensive genetic exchange among these species.
C) It is the primary cause of tuberculosis in the United States.
D) Both a and b
E) Both a and c