o4=Worsen
Explanation:
The word deteriorate means worse or fasten.
Sad and stingy probably would not work in this situation, but sly and mean are possibilities. Although either could be correct, I would go with sly, which means they are sneaky and conniving. I’m not a 100% sure, but I believe sly is the best answer. I hope this helps!
Answer: A.
:)
Explanation: He is considerate. He is selfish. He lacks confidence.