A predicate adjective is the first adjective that follows a linking verb which connects two parts of a sentence (in this case, that verb is 'was'). So, the first adjective after was is 'sleek', so D is the correct answer.
Answer:
D. B and C
Explanation:
The Hopi are a Native American tribe who primarily live on the Hopi Reservation in northeastern Arizona.
The given passage tells us about their relationship with nature. We can see that they have only positive feelings about nature, that they respect it. They know that it came first. Many creatures that surround us were already a part of this world before we, humans, appeared. They respect nature because of that, and because it was made for us. Without other lifeforms surrounding us, we wouldn't have been able to survive and develop as we did.
Thus, the correct option is D.
I'm not 100% sure what it exactly means, but I do know it is a simile.
Hope this helps! :)