PT 5 S3 Q24

There are about 75 brands of microwave popcorn on the market; altogether, ... ...

Which one of the following statements, if true, would call into question the conclusion in the passage?
(A) More than 50 percent of popcorn purchasers buy conventional popcorn rather than microwave popcorn.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: "Weaker" Questions, Set 3 - Difficult/Uncommon Mix (25Q)