A firm decision
or
a solution to a problem
The answer should be C. Since it seems like the best choice out of the four.
Hello. You did not provide the ticket, the name of the audio clip or the speech to which the question is referring, which makes it impossible to answer your question.
However, I can help by talking about how these media can affect your understanding of a speech. First of all, you must understand that the passage of a speech, allows you to have a partial idea of the theme related to the speech. This allows you to reason about this topic and be able to reread it, reaching full understanding. On the other hand, an audio clip allows the understanding you gained with the passage to be complemented, especially if this clip was filmed with images and sounds, instead of just sounds. This allows the verbal language to which you have access, work together with the non-verbal language of images in addiction and create a vast understanding of the discourse, its themes and meanings.
