Multiple Choice
Propylene glycol, shown below, is a nontoxic diol used as a solvent for pharmaceutical drugs, and as a moisturizing agent for foods.When ingested, both alcohol functional groups are oxidized by enzymes in the liver to produce pyruvic acid, a compound with the formula C3H4O3.What is the structure of pyruvic acid? 
A) 
B) 
C) 
D) 
E) 
Correct Answer:

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Correct Answer:
Verified
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