Advertisement: Fabric-Soft leaves clothes soft and fluffy, and its fresh scent is a delight. We conducted a test using over 100 consumers to prove Fabric-Soft is best. Each consumer was given one towel washed with Fabric-Soft and one towel washed without it. Ninety-nine percent of the consumers preferred the Fabric-Soft towel. So Fabric-Soft is the most effective fabric softener available. The advertisement's reasoning is most vulnerable to criticism on the grounds that it fails to consider whether
A: Fabric-Soft is more or less harmful to the environment than other fabric softeners
B: the consumers tested had the opportunity to evaluate fabric softeners other than Fabric-Soft
C: any of the consumers tested are allergic to fabric softeners
D: the consumers tested find the benefits of using fabric softeners worth the expense
Choose A, B, C or D as your solution.
B