How do the intercostal muscles and diaphragm work together during respiration?
a) The intercostal muscles contract and the diaphragm relaxes to inhale.
b) The diaphragm contracts and the intercostal muscles relax to exhale.
c) Both the diaphragm and intercostal muscles contract for inhalation and relax for exhalation.
d) The diaphragm contracts to inhale and the intercostal muscles contract to exhale.
