Letitia on December 8, 2018
For this question my answer was E- because if there are more people harbouring H pylori than M tuberculosis, and since H pylori allegedly strengthens immune system, then it strengthens the fact of it being commensal, and thus beneficial. Thus weakening the argument.
Can someone explain why the answer is C? Doesn't this answer strengthen the argument?
Ravi on December 16, 2018