Well that would be your viens I think.... letter B.
Changes in the force of contraction of the heart
Well, you have two options, either throw up now and not worry about it later (this relieves pain too), otherwise, just drink something and have something to eat. Don't try anything too sugary like one of those Starbucks unicorn drinks (I don't know if they still exist but hey, just a warning!). Try a soda or just plain water. For something to eat, try a corndog or something that you like. Most people like pizza, so try a nice greasy pizza!
The correct answer is C.)
Carbon Monoxide, a by product and a pollutant, when inhaled replaces oxygen which in turn devastates the body. It affects the heart directly by stopping the oxygen flow which in turn reduces the pumping capacity and can permanently impair it's cardiac function.
Hope this helps!<span />
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