Since 'sullen' and 'moody' mean almost the same, we should find a word that has a similar meaning to 'monotonous'. The word that has the closes meaning to it is 'repetitious', meaning 'tedious, boring, dull'.
The correct answer is (c): <span>a thing and its associated quality</span>
Answer:
Go outside and get inspire by nature, god, and humanity
Explanation: