Polio is a disease that can cause paralysis. doctors treated patients with casts and braces, but the work of elizabeth kenny led to the use of hot baths and exercise to treat polio victims. these patients had less incidence of paralysis. kenny’s ideas and their acceptance were due to
1. skepticism.
2. popular opinion.
3. open-mindedness.
4. scientific consensus.

The correct answer that would best complete the given statement above would be option 4. Based on the given description above about the patients who experienced Polio disease, Kenny's ideas and their acceptance were due to scientific consensus. Scientific consensus means that it is a collective judgment position, and opinion of the community of scientists in a particular field of study. Hope this answer helps.