A. being oxygenated in the alveoli, where oxygen is supposed to attach to the red blood cells (in the lungs)
Yeah I hope this helps so the workings out are as the below heee
<em><u>Answer:</u></em>
Chronic stress, or a constant stress experienced over a prolonged period of time, can contribute to long-term problems for heart and <em>blood</em> vessels. The consistent and ongoing increase in heart rate, and the elevated levels of stress hormones and of <em>blood </em>pressure, can take a toll on the body.
<u><em>Explanation:</em></u>
*Hope this helps*
