Concept:A skit is most effective when it makes the message engaging and relatable to learners.Explanation:A skit is a performance, not just a lecture or a slideshow.Using complex scientific terms will make the message hard for learners to understand.Graphic images of germs and diseases may frighten learners instead of educating them.A talk alone does not take advantage of the skit format.Humor and relatable characters keep learners interested and help them remember the message about handwashing.Answer:B. Use humor and related characters