Humans were the dominant beings of society, which is definitely comparable to today's society. The culture in which the selection was first told was (more than likely) learning that although humans don't do much for animals, they provide a lot for us.
I'm not sure if that's the kind of answer you were looking for but I attempted to help you. Sorry if I didn't hit the right point.
North central plain ( I think ) southern plain
The idea of racism and ethnic discrimination needs to change. In this
speech, Kennedy is saying that in a country that calls itself free, even
in the constitution, is not actually fully free. He makes remarks about
how we can say to the world, "We are a free country!" ...Except for the
Negroes. He also expressed how we can "Preach freedom around the
world!" and then turn around and endorse acts of slavery and
discrimination, without even acknowledging it, acting like doesn't
exist. The idea of this discrimination needs to change in order to
become a truly free country. Although we can as a country we can say we
are free, egalitarian country, the citizens of such country may not
express that.
(I did find this somewhere else, so I am not taking credit for it I just thought it would help)
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d.all of the above because it's true