Which of the following resulted in an increase in tidal volume above the normal value?

A. emphysema
B. moderate exercise
C. acute asthma attack plus inhaler moderate exercise
D. acute asthma attack plus inhaler and emphysema

What link in the chain of transmission is described in the paragraph? sarah has been eating and sleeping poorly. she was just diagnosed with pneumonia. tests showed the illness was caused by streptococcus pneumoniae. in the chain of transmission, sarah is the (blank) , and streptococcus pneumonia is the (blank).