The correct answer is: D. recovered
Time is a linear and irreversible process. Once time has passed, it cannot be returned to. This is why time is often said to be “irretrievable” or “unrecoverable.”
Option A, “gained,” is incorrect because it implies that time can be added to or subtracted from. This is not the case. Time is a constant, and it cannot be changed.
Option B, “recalled,” is incorrect because it implies that time can be remembered or brought back to mind. While it is possible to remember events that happened in the past, time itself cannot be recalled.
Option C, “renumerated,” is incorrect because it implies that time can be paid for or compensated for. This is not the case. Time is a precious commodity, and it cannot be bought or sold.
In conclusion, the correct answer is: D. recovered. Time once lost cannot be recovered.