Last spring, a chili pepper garden was opened on a campground in an area with a significant raccoon population. Since raccoons are attracted to the remnants of human food, campgrounds would usually attract raccoons, yet no raccoon encounters were reported by campers. Capsaicin, a chemical present in most chili peppers, is used in sprays engineered to repel raccoons, so it is reasonable to think that the capsaicin in the chili pepper garden kept the raccoons at bay.
Which of the following, if true, most strengthens the argument?
【选项】
Capsaicin can be found in many foods, but in lower concentrations than within the peppers themselves.
选项是否正确？