Which of the following is a sign of a stroke?

A sign of a stroke often includes dizziness and confusion, which are neurological symptoms that can result from disrupted blood flow to the brain. When a stroke occurs, it may impair cognitive functions and coordination, leading to confusion or difficulty in understanding. Dizziness can also occur due to changes in the brain's ability to process information and maintain balance, which can make it a significant indicator of a potential stroke.

Other options such as changes in appetite, excessive sweating, and high fever can be symptoms of various other medical conditions but are not directly associated with the onset of a stroke. These symptoms may arise from infections, metabolic issues, or even psychological conditions, but they do not reliably indicate a stroke in the way that dizziness and confusion do. It’s essential for individuals to recognize these signs promptly, as strokes require immediate medical attention to minimize long-term impacts.