PT 15 S2 Q3

A certain strain of bacteria was found in the stomachs of ulcer patients. ... ...

Which one of the following, if true, most supports the argument above?
(A) People who have the bacteria strain in their stomachs have been found to have no greater incidence of kidney disease than do people who lack the bacteria strain.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: "Stronger" Questions, Set 1