Pharmacists recently conducted a study with respect to the reasons their customers purchased eye drops to soothe eye dryness. Dry eyes were more frequently experienced by customers who wore contact lenses than by customers who did not wear contact wearers to have dry eyes. Which one of the following statements if true most seriously undermines the pharmacists conclusion?

A An inherited condition can cause both weak eyesight and dry eyes.

B Physical exertion causes dry eyes in many people who wear contact lenses.

C Most people who have dry eyes do not wear contact lenses.

D Most people who wear contact lenses do not have dry eyes.

Correct Answer: Option B