A recent study found that employees who regularly use standing desks report fewer instances of back pain than those who use traditional sitting desks. The study concludes that companies wanting to reduce employee healthcare costs related to back pain should invest in standing desks. Which of the following, if true, would most strengthen the conclusion of the study?
✓ Correct Answer: Option C
The conclusion links investing in standing desks to reduced healthcare costs. Option C directly supports this by showing that companies investing in standing desks experienced a decrease in overall healthcare claims, reinforcing the causal link.