Final answer:
Glycerol is not indicated by any of the numbers listed in the question. It is a small molecule with the formula C3H8O3 and is part of triglycerides, being the backbone to which three fatty acids are attached.
Step-by-step explanation:
The correct molecule for glycerol is not provided in the information given. However, we can describe glycerol as a simple compound which forms the backbone of triglycerides, which are fats and oils. Based on the last piece of information provided, triglycerides are composed of a glycerol molecule attached to three fatty acids by a dehydration synthesis reaction. Glycerol itself is a small molecule with the formula C3H8O3. It contains three hydroxyl (OH) groups, and it is often represented by a three-carbon chain with each carbon atom bearing a hydroxyl group, making it an alcohol.