The advertisement that is likely to convey the most favorable message about riding bikes to work and school is the first one: "A commercial discusses all the benefits of biking to work or school. The commercial shows happy people biking in sunny weather on paths without cars."
This option highlights the positive aspects of biking, showcasing happy individuals enjoying a pleasant experience without the stress of traffic, which is more likely to motivate viewers to consider biking as a viable option for commuting.