Which of the following is a common symptom of pulmonary fibrosis?

Pulmonary fibrosis is characterized by scarring of the lung tissue, which progressively affects the ability of the lungs to function properly. One of the hallmark symptoms of this condition is shortness of breath, specifically during physical activity, which occurs due to the thickening and stiffening of the lung tissue that reduces gas exchange efficiency. Additionally, a dry cough is often present as the lungs attempt to clear irritants, and fatigue is a common experience as the body expends more energy to breathe effectively. Together, these symptoms reflect the impact of pulmonary fibrosis on respiratory function and overall health. This aligns with the clinical presentation observed in patients suffering from this condition, making it the correct response.