B) look to discover the text's most important idea.
Explanation:
In order to provide a critique of a text, we need to make sure we understand the text well. Therefore, we need to examine each of the ideas that the text presents carefully. Also, we need to look to discover the text's most important idea. Only when we understand this can we really be sure that the critique we are providing is fair and constructive.
B: Adverb
Explanation:
An adverb describes the way a verb is used. In this case, they were dwarving (verb) digitally (adverb)