You are examining the motor component of the trigeminal nerve while observing a patient open and close her mouth repeatedly. Which of the following clinical findings would be most significant in highlighting a weakness of the right pterygoid muscles?
1. Accreditation during mouth opening
2. Deviation of the jaw to the right during mouth opening
3. Deviation of the jaw to the left during mouth opening
4. Difficulty depressing the mandible during mouth opening
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