Go through the following statements
(i) the peripheral chemoreceptors for regulation of respiration are located in carotid veins and arch of aorta
(ii) the primary effect of penumotaxic center is to control the switch off point of inspiratory signal and thus limit inspiration
(iii) the chemosensitve area for brain for respiratory control is highly sensitive to `O_(2)` concentration
(iv) i case of fetal hemoglobin the oxygen hemoglobin dissociation curve is shifted toward left
which of these are correct ?

Options

A. I , ii & iv
B. ii and iv
C. ii , iii & iv
D. iii and iv

Answer

B

Explanation

The peripheral chemoreceptors are located in carotid arteries and arch of aorta .The chemosensitive area is highly sensitive to `CO_(2)` and `H^(+)`