B.
none of the others even sound right
C. The sentence is interrupted for some detail, thus needs a comma
Answer:
their common passion for paleontology and mutual disdain for each other fueled their ambition, ultimately leading to the discovery of over a hundred new species in America. At the same time, their bitter rivalry damaged their reputations and left the two almost penniless at their deaths.
The rhyme scheme consists of a discernible pattern of rhymes (words corresponding to other words in sounds) at the end of the lines, or in the middle. In this case, the rhyme scheme is as follows: ABBAABBACDCDCD. Look at the ending words of each line, and you'll notice the pattern: "saint" - "grave" - "gave" - "faint" (the first rhymes with the fourth, and the second rhymes with the third); the same with "taint" - "save" - "have" - "restraint". The rest of them: "mind" - "sight" - "shin'd" - "delight" (the first and the third rhyme with each other, just like the second and the fourth), etc.
The answer is B. “Pale”
Hope this helps!
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