NEET Biology question

Complete the following sentence by selecting the correct option. Receptors associated with the aortic arch and carotid artery can recognize changes in (i) and (ii) concentration and send necessary signals to (iii) for remedial actions.

• (A)(i)-O, (ii)-CO, (iii)-pneumotaxic centre
• (B)(i)-CO, (ii)-H, (iii)-rhythm centreCorrect
• (C)(i)-CO, (ii)-H, (iii)-apneustic centre
• (D)(i)-O, (ii)-H, (iii)-pneumotaxic centre