Read the excerpt below and answer the question.
…it is certainly a subject worth our labour to inquire into the origin, certainty, and extent of human knowledge, together with the grounds and degrees of belief, opinion, and assent;… (“An Essay Concerning Human Understanding”; Introduction, p. 1).
Which identifies an explicit meaning of the excerpt?
His topic of human knowledge is worth the time and effort it requires.
Belief is a phenomenon few people can explain.
His theory of how humans obtain knowledge is questionable. Human knowledge is boundless.