A. A stagnant pond
B. Something that happened in the past and cannot now be changed
C. Alter facts or figures dishonestly or illegally
D. Unresolved issue or conflict
Submitted by: Ay@z AB
The idiom “water under the bridge” refers to past events or situations that are no longer considered important or worth worrying about because they can’t be changed.
The correct answer to the question: "‘Water under the bridge’ means:" is "Something that happened in the past and cannot now be changed".