Advertisement A shows a credible source because it is providing the audience with factual information with no bias. It was made by the Center for Disease Control. This ad was made to inform citizens and provide them with information to help with their sleeping habits.

Advertisement B show a non-credible source since it is promoting an unhealthy product. It shows bias because it has a motive to attract customers to purchase this specific brand of filters. It also shows unreliable information by stating that dentists recommend it. No information backs up the statements shown.

Advertisement C shows the iconic Rosie the Riveter. I consider it an attractive source since it was made to emotional persuade females to join the workforce during the war. The image was seen as women empowerment and gave American women the motivation to be able join the workforce and succeed. Many women joined due to this ad, which shows how effective it was during that time.