Final answer:
Laughter is not a common trigger for asthma attacks, while other options such as dust, hard exercise, and plants (likely referring to pollen) are known to be common triggers that can cause bronchioles to become inflamed and provoke an asthma attack.
Step-by-step explanation:
Among the options provided – dust, hard exercise, plants, and laughter, the one that is not a common trigger for asthma attacks is laughter. While laughter can sometimes lead to changes in breathing patterns that might trigger an asthma attack in some individuals, it is not listed as a common trigger in medical literature. Common triggers include environmental factors like dust, pollen, pet hair, or dander, tobacco smoke, and respiratory infections, as well as exercise and stress. These triggers can cause the bronchioles to become inflamed, leading to difficulty breathing, coughing, wheezing, and chest tightness during an asthma attack.