Answer
c) Falling PH of the blood
Work Step by Step
By holding your breath, the amount of CO2 in the blood increases. This makes the blood more acidic, with a low pH.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.