During vigorous exercise, there may be insufficient oxygen available to completely break down pyruvic acid for energy. as a result, the pyruvic acid is converted to
a) hydrochloric acid
b) a strong base
c) lactic acid
d) stearic acid

C. Lactic acid

Explanation:

According to my research on studies conducted by medical professionals, I can say that based on the information provided within the question this situation results in the pyruvic acid being converted into Lactic acid. Lactic Acis is an organic acid and it can cause a bit of a temporary burn while you're running hard or lifting weights.

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b) the inside picture would look at a very high temperature in a very low ph