Im stuck on this question. do you mind me out real quick?

In the song mallam sile sings in lines 113 through 130 the knife probably represents

What is one unique way in which the medium of tv can affect a message? a. by allowing the audience to review information and reflect on it b. by limiting the amount of coverage any one topic gets c. by using images and sound to give information context d. by reporting some types of information but ignoring other types

Me this is due tomorrow and i'm having a hard time with the reading