Answer:
But just because brain cells may be able to live indefinitely doesn't mean humans could live forever. Aging is dependent on more than the life span of all the individual parts in the body, and scientists still don't understand exactly what causes people to age.
Eres un loco, ¿tienes un chasquido?
I would say A. Advertisers tend to target their ads at a certain age group, and using different types of music can have a different appeal to a certain age group. If they want certain people paying attention to their ads, they'll most likely use a song from their generation.
