Final answer:
Ozone in the troposphere is linked to respiratory distress due to its reactive nature causing inflammation and damage to lung tissue, making B) respiratory distress the most likely health issue caused by ground-level ozone.
Step-by-step explanation:
Ozone in the troposphere, often referred to as bad ozone, is known for its harmful effects on the respiratory system. Exposure to high levels of ozone can lead to various health issues, including respiratory distress such as coughing, wheezing, throat irritation, and difficulty breathing. It is particularly harmful to individuals with pre-existing lung diseases, such as asthma or chronic obstructive pulmonary disease (COPD).
While other health problems like skin rashes, weakened immune systems, and upset stomach may be associated with other environmental factors or health conditions, they are not directly linked to the presence of ground-level ozone.
Given the information that links elevated levels of ozone to respiratory issues, the correct choice is: B) respiratory distress