Answer:
A) and increases the retention of information in the ad
Step-by-step explanation:
Once I was checking my dad's old video cassettes from the early 80s and I saw an ad that encouraged people to buy American products and Bruce Springsteen sang "Made in the USA" instead of "Born in the USA". For the first time I realized why my father didn't know the lyrics of the original song. The ad was so fixed in his head that he even changed the original title and remembered it that way.
Music in advertisement can do that, whenever you listen to the song you immediately associate it with the product sold and that increases the effectiveness of advertising.