Respiration is the physiological process in which

Which of the following statement$(s)$ is/are correct?
$(a)$ High concentration of carbonic anhydrase in RBCs.
$(b)$ High concentration of carbonic anhydrase in blood plasma.
$(c)$ Every $100 \ ml$ of deoxygenated blood delivers approximately $4 \ ml$ of $CO_2$ to the alveoli.
$(d)$ $20-25\%$ of $CO_2$ is carried by hemoglobin as oxyhemoglobin.

Which of the following is not the function of the conducting part of the respiratory system?

Find out the false statement.

Body compensates for low oxygen availability at high altitudes by:
$I.$ Increasing $RBC$ production
$II.$ Decreasing the binding affinity of haemoglobin
$III.$ Increasing the binding affinity of haemoglobin
$IV.$ Increasing the breathing rate
$V.$ Decreasing the breathing rate
Choose the correct option for the given statement.

$A$: When a person starts doing exercise,the rate and depth of breathing increase even before there are changes in $pO_2$,$pCO_2$,or $H^+$ concentration.
$R$: The main stimulus for these quick changes is due to input from the proprioreceptors,which monitor movements of joints and muscles.