The answer to your problem is C.
You can look at the words in front and behind it, because they refer to this big word. You may find a synonym of the word or a close reference. So for example in this sentence: I was excited and ambitious to learn about cars today. So this is a easy example. You can use exited to define ambitious if you dont know what ambitious means.
it is an adverb clause because enjoyed is acting like a verb
Well, Horus had a falcon head, Bast was a cat goddess, and Nekhbet is the vulture goddess. The Egyptians believed that these animals had special powers, and the personality of the god or goddess depended on the animal they stood for, like Anubis had a jackal head, and helps with the Underworld (i guess that's what it's called). Hope this helps!