The first question is B. false, The answer to the second question is stolon.
Answer should be A if multiple choice
✴ It actually can depends on the baby's gentics.
✴ But, I'd say approximately 18 to 22 inches for the all-'round average baby
During respiration, the diaphragm moves upwards and returns to dome shape from the flattened shape before during expiration.
This movement of diaphragm can decrease the lung volume, increase the pressure inside and thus force the air out. This process is expiration.
However, if we breathe in again, which makes that inhalation, the diaphragm moves downwards into a flat shape so that it can increase the lung volume and thus we can breathe in as much air we can. This process is completely opposite from expiration.