C. a proposal from a local radio station detailing a popular ad
Because those holding the bake sale would know how much they are charging sponsors for sponsorships and would also know the number of people who would come into contact with the sponsor information, the information that would be needed is the same information for a radio ad campaign in order to make the comparison. As such a proposal from a local radio station detailing a popular ad plan would be just the source needed.
Vagueness best describes ambiguity
Answer:
Knowing about the file types and advantages and disadvantages of each can help you in other aspects of life such as with school work and if you need to save photos for your personal life. Knowing how to create a good photo and what makes a good photo can also help you if you draw because then you know how to make a good and appealing drawing. Editing skills might also help you in other areas like school work depending on what you are learning and doing in school. Editing skills might also come in handy in your personal life especially if you have certain jobs that you could use your editing skills.
hope this helps :)