"A. The ancestor of the dog." is a fragment. When in doubt, say the sentence out loud and ask yourself if there is enough information for the sentence to make sense.
<span>"Rainsford did not smile. "I am still a beast at bay," he said, in a low, hoarse voice. "Get ready, General Zaroff."</span>
You give the persons name a another name instead of the one it has.
I dont know because it was 999 and then it turned out to be 1k.
