Correct is irrefutable, therefore it's most likely D. Correct
also has no varying degree, only one set degree, which is well... correct. You can't get more right than the absolute.
Example- I used time wisely when I efficiently did my homework directly after school, and verified my answers with an adult. I did not, however, use time wisely when I held off my history project until a day before the due date. I could plan better by using my own motivation, or by reminding myself on paper what I need to complete.
(c) because the Arthur said if "But you were not listening, because you knew it already, had learned, absorbed it already without the medium of speech somehow from having been born and living beside it, with it, as children will and do." The person said "But if you were"