Which statement is the best thesis for a compare-and-contrast essay?
a. both of the political ads describe the candidates’ opinions about creative ways to improve regional transportation.
b. one of the ads uses photographs of traffic jams and construction projects, while the other ad uses quotes from citizens.
c. one of the ads shows existing regional traffic problems, while the other ad shares opinions about proposed projects.
d. both ads effectively convey the candidates’ names and political parties, but the ad with citizen testimonials is the most convincing.