Where may NOTES be introduced during a match?

The correct option indicates that NOTES can only be introduced through a designated SOURCE during a match. This reflects the structured rules of the competition, ensuring that any information conveyed to the teams is done in a controlled manner. Having a designated SOURCE helps maintain the integrity and fairness of the match by preventing teams from receiving unauthorized or potentially disruptive information from other areas or via unpredictable methods.

While other choices might suggest flexibility or strategy, they do not align with the rules that govern how teams are allowed to introduce NOTES. For instance, utilizing any part of the FIELD, or considering team strategy without adherence to the official regulations, could lead to confusion and unintended advantages or disadvantages. Similarly, allowing NOTES during a timeout could lead to inconsistency in how information is shared among teams, potentially affecting the outcome of matches. Therefore, the emphasis on a designated SOURCE upholds the competitive standards of the event.