Select the correct statement
a) the inspiratory center controls the pneumotaxic center, causing rapid shallow breathing
b) the expiratory center controls the pneumotaxic center, causing prolonged exhalation.
c) the apneustic center stimulates the inspiratory center, causing prolonged inhalation.
d) the pneumotaxic center stimulates the expiratory center, causing sudden exhalation.
e) all of these are correct