Two individuals with the same body mass each carry out the same amount of exercise. One individual is healthy, whereas the other has emphysema. The rate at which oxygen enters each person's blood in the lungs is measured. The findings are given in the table (oxygen entering blood in $\text{cm}^3$ per minute: healthy person 22, person with emphysema 12). Which statement explains these results?
- AThe healthy person has a faster breathing rate.
- BThe healthy person has a smaller lung volume.
- CThe person with emphysema has damaged alveoli.
- DThe person with emphysema has larger alveoli.