A. make sure the audience knows you added the music afterward
Explanation:
It can't be B because it makes no sense to fool the audience when it's a news story. C makes really no difference, but if you're gonna add a music that is that low, maybe give up on it completely. D is surely incorrect, since loud music can be distracting or even annoying.
The audience should know that the music was added for some effect, not fooled, since a News Story is meant to reflect reality to some extent.
A. make sure the audience knows you added the music afterward
News stories try to reflect reality as it happens, and sometimes we can use audio to enhace it, make it more beautiful, or dramatical, or sad, or happy, but we have to make sure our audience knows that we put that music there, or we would be trying to modify reality and that´s staging somethin and it´s wrong ethically for journalist to do so.
