An introduction is given about how the topic of interes will be treated.
Usually images of an explanatory nature are included, with a explanatory talk, the images are included to bring the reciver closer to the topic of interest in a friendly way.
it's purpose is to inform a non specialized public, and sometimes, without prior knowledge, so that the same present an interest in the subject.
"...flung into a cagelike crate"
To feel what the monster is feeling
I would say C. I actually haven't read the passage, but based off of another question I saw, I'd say the answer is C.
