A is the answer to the question
You have to understand positive, comparative, and superlative forms of adjectives to do this. The positive form is the simple form of an adjective as applied to the sentence. The comparative form refers to the form of an adjective that relates it to other possible intensities of the adjective; it it used to say to what extent an adjective applies. The superlative form states the adjective in the most prominent extent. Alright, now let's look at the answers.
Answer A is incorrect because it should be "cheap, cheaper, and cheapest."
Answer B is incorrect because it should be "drowsy, drowsier, and drowsiest."
Answer C is correct.
Answer D is incorrect because is should be "troublesome, more troublesome, and most troublesome."
Answer: C. good, better, best
Hope this helps!
Omnibenevolent would mean universally good. (Good to all, same meaning)
Without a doubd I can say that after reading this excerpt from Leo Tolstoy’s ''The Death of Ivan Ilyich'' it is clear for me that the statement that shows its summary in the best way is the last lines '<span>‘there had been something really pleasant with which it would be possible to live if it could return. But the child who had experienced that happiness existed no longer, it was like a reminiscence of somebody else''</span>