C. gathering and analysis of information
Well, this line is a hyperbole because it shows an exaggeration and the person talking hasn’t actually heard all things in the heaven and in earth so, this is an example of a hyperbole.
It should be
B.
adverb phrase
additional materials：
Adverbial phrase is the term for two or more words which play the role of adverb
A sentence that notes an effect that resulted from that cause
