What part of speech is the word in italics?

shelly's beautiful dance thoroughly captivated the audience.

noun
verb
adverb
adjective

Which link would readers of this dictionary entry click if they wanted more information about the historical origins of the word language

When aquinas realized that he could not find all the answers, he turned to

The difference between a guess and an inference is a. an inference is not supported by evidence while a guess is. c. a guess and an inference are the same thing. b. a guess is not supported by evidence while an inference is. d. none of the above