In an appeal, the idea of “new evidence” centers on information that could not have been obtained or known when the final decision was made. The best choice reflects this by specifying evidence that was not reasonably available at that time. This keeps the appeal grounded in information that genuinely emerged after the decision, which could potentially affect the outcome if it had been known earlier. Why this is the best fit: if something only becomes accessible after the decision, it could reasonably influence whether the decision was fair or accurate, and it wasn’t something that could have been considered earlier with reasonable effort. This is the standard used to determine what counts as new evidence on appeal and why it’s admissible. Why the other ideas don’t fit: evidence that was already available at the time of the decision isn’t new for an appeal because it could have been presented then. A change in policy after the decision isn’t about new facts in the case—it’s a rule change after the fact. A new complaint by another student doesn’t address the specifics of the decision under appeal and isn’t evidence about the merits of that decision.