The answer would seem like it's either "A. listening to gangster rap music for the first time" or "C. getting advice from a disreputable source".
To figure out which one it is, you need to know what semantic noise is. A semantic is when read something that can be interpreted in more than one way. Semantic noise is just the audio version of it.
(Example: "Normally I don't condone leaving early, but I have an appointment with the horse doctor. How that horse became a doctor, I don't know. [laughs] No, I'm kidding. He's just a regular doctor who shoots your horse in the head when its leg is broken." - Dwight K. Schrute)
It's likely that it wouldn't be C since it seems pretty straightforward. Therefore your best bet is "A. listening to gangster rap music for the first time" since it's more than likely that you'd hear a lot of things that sound like it could have a double meaning.