Answer:
b. It seemed to me as if nothing would or could ever be known.
Explanation:
In the text, the narrator seemed optimistic about learning until this line.
Can you post the actual question with the shown sentences?
Answer:
The answer is "to provide."
Explanation:
The sentence "The purpose of this workshop is _____ new employees with all the necessary information" requires an infinitive to be completed. An infinitive is the basic form of a verb, without an inflection binding it to a particular subject or tense. "To provide" is an infinitive, and thus completes the sentence properly.