Nothing is underlined in your sentence, but the sentence sounds like it is set in the present.
B. present
The detail that helps you illustrate the idea? is that the only question? I can answer that is there anything else you need me to answer in the paragraph?
One species(the parasite) benefits while the other species (the host) is harmed
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.
Thesausarus is as same as a dictionary, just has some more words.
An audiobook is also not that useful.
So I would say that an Encyclopedia an example of a multi media source.