Nokea
Which condition is characterized by the lungs becoming scarred and stiff, leading to difficulty breathing and inadequate oxygen intake into the bloodstream?
Correct Answer: A
Rationale: Pulmonary fibrosis is characterized by scarring and stiffening of the lungs, impairing their ability to expand and contract properly for breathing. This leads to difficulty breathing and inadequate oxygen intake into the bloodstream. In contrast, cystic fibrosis primarily affects the respiratory and digestive systems, COPD is a progressive lung disease primarily caused by smoking, and tuberculosis is a bacterial infection that primarily affects the lungs. Therefore, the correct answer is A because it specifically describes the scarring and stiffness of the lungs resulting in breathing difficulties and inadequate oxygen intake.