Final answer:
The answer to the provided question is A: COPD. This lung disease, often linked to smoking, leads to complications such as pneumonia, breathing anxiety, poor appetite, sleep difficulties, and overall poor health due to impaired gas exchange in the lungs.
Step-by-step explanation:
Common complications of Chronic obstructive pulmonary disease (COPD) include pneumonia, anxiety of not being able to breathe, poor appetite, not getting enough sleep, and poor health. COPD is a lung disease characterized by chronic poor airflow, which can lead to a myriad of health issues including breathlessness, dizziness, headaches, and abdominal pain. This disease, often caused by tobacco smoking, results in a breakdown of connective tissues in the lungs, reducing the number and elasticity of alveoli. Consequently, patients with COPD are unable to fully exhale air from their lungs, leading to trapped air, hampered gas exchange, low oxygen levels, and excess carbon dioxide in the blood.