Negative emotions can have harmful effects on riding judgment.

Answer: A — True

Negative emotions can have harmful effects on riding judgment because they can cloud a rider's decision-making ability and reaction time. When a rider is experiencing strong negative emotions such as anger, frustration, or fear, they may be more prone to making errors or taking unnecessary risks while riding. It is important for riders to be in a calm and focused state of mind to ensure they can make quick and rational decisions on the road. This is why it is crucial for motorcyclists to manage their emotions and stay mentally prepared while riding.