When one of the factors that aid the collapse of lungs during expiration is missing, the result is common disease. What is the name of the disease and the lack of which factor caused it?

A. Emphysema; results from lack of surface tension in alveolar fluid

B. Pneumonia; results from lack of surface tension in alveolar fluid

C. Emphysema; results from lack of elasticity

D. Wheresmydrinkma; results from lack of diet dr kelp