What are common symptoms of motion sickness?

The choice that identifies dizziness, nausea, and sweating as common symptoms of motion sickness is correct because these symptoms are typical physiological responses when the brain receives conflicting signals about motion from the inner ear, eyes, and deeper body parts. Motion sickness often occurs during travel in vehicles, boats, or aircraft when the body's balance systems are disturbed.

Dizziness is experienced as a result of this conflict in sensory information—such as when one is looking at a stationary object inside a moving vehicle while the inner ear senses motion. Nausea follows as the body reacts to the confusion from the brain, and sweating typically accompanies these sensations as part of the body's autonomic response to stress. These physiological responses are widely recognized in medical literature regarding motion sickness and can vary in intensity from person to person.

Other choices such as headaches and blurred vision, fatigue and irritability, and increased heart rate and heightened alertness may occur in various contexts but are not primary symptoms associated specifically with motion sickness. Instead, they tend to be linked to other conditions or stress factors that aren't directly related to the vestibular disruptions of motion sickness.