Correct Option: C

Motion sickness or kinetosis, also known as travel sickness, is a condition in which a disagreement exists between visually perceived movement and the vestibular system’s sense of movement. Depending on the cause it can also be referred to as seasickness, car sickness, simulation sickness or airsickness. If the motion causing nausea is not resolved, the sufferer will usually vomit. Ginger is reported to calm the pyloric valve located at the base of the stomach. This relaxation of the valve allows the stomach to operate normally whereby the contents will enter the small intestine instead of being retained within the stomach. It is this undesirable effect of retention in the stomach that eventually results in vomiting.