To reduce the number of alerts generated by the "Unusual protocol activity (Internal)" network anomaly without entirely disabling the policy, setting the Alert Disposition to Conservative (option B) is the most effective strategy. This configuration adjusts the sensitivity of the anomaly detection, reducing the likelihood of false positives and minimizing alert fatigue without compromising the ability to detect genuine security threats. By adopting a more conservative approach to anomaly detection, the administrator can ensure that only the most significant and potentially harmful activities trigger alerts, thus maintaining a balance between security vigilance and operational efficiency.