Which of the following disorders can cause dysphagia in adults?

Dysphagia, or difficulty swallowing, can occur due to various neurological and structural issues affecting the swallowing mechanisms. Stroke is a significant cause of dysphagia in adults because it can lead to damage in the areas of the brain that control the swallowing process. This damage may affect the muscles involved in swallowing, disrupt the coordination necessary for safe and effective swallowing, and result in aspiration or feeding difficulties.

While diabetes and asthma can lead to various complications and health challenges, they are not directly linked to causing dysphagia. Diabetes may lead to neuropathies or complications that affect overall health but is not a direct cause of swallowing difficulties. Asthma is primarily a respiratory condition and does not typically impair the swallowing mechanism. Thus, the most accurate choice concerning disorders that can cause dysphagia in adults is stroke.