The correct answer is slide backward.
A. regain possession
B. turn back
C. slide backward
D. repay with kindness
The correct answer is (C) To slide backward (to an earlier condition), to go or move backwards to a worse condition; to deteriorate; to revert to an inferior state.
Retrogress comes from Latin retrogradi (to walk backward).
Examples of use:
- The patient's condition appears to have retrogressed.
- During recent decades, the state of our public education has retrogressed.