I cited the wrong evidence.
Correct a citation without erasing what you originally said.
What to do
- File a revision citing the right evidence, and say in the explanation that the earlier citation was mistaken.
- The original stays legible beside the correction. Anyone reading your record sees both, which is what makes the correction worth anything.
Still stuck? The other tasks may cover it. If what you actually want is to judge better rather than to finish this, that is the Learning Centre.