I NEED HELP ASAP PLEASE!!!!! Which sentence correctly uses the word debased?

A. After talking to her cousin, she debased her diet by eating two fast-food sandwiches.
B.By attempting to correct their wrongdoings, they only further debased their thinking.
C. After slipping on a banana peel and falling, he debased himself for life.
D. By spreading rumors and talking behind her back, Maria’s schoolmates debased her good reputation.