Which of the following is NOT an allowed communication method during a challenge?

• A. Verbal communication between participants.
• B. Non-verbal signals.
• C. Prearranged gestures.
• D. Signals from the host.

Answer: (A)

Maintaining silence is the key rule in these challenges. Verbal communication would break that silence, potentially revealing strategies or giving an unfair advantage, which isn’t allowed. In contrast, nonverbal signals and prearranged gestures are silent and planned ways to coordinate, while signals from the host are official cues that don’t involve speaking. Because speaking between participants violates the rule to stay quiet, it is the not-allowed method and the best answer.