Discussion
Alcohol is rapidly absorbed from stomach, duodenum and small intestine as it is :
Answer: B
The key's answer is that alcohol is highly lipid soluble.
Ethanol is a small, uncharged molecule that mixes with water and also dissolves well enough in lipids to pass straight through cell membranes by passive diffusion. It therefore needs no digestion or carrier and is absorbed rapidly, about a fifth from the stomach and most of the rest from the duodenum and small intestine, reaching peak blood levels within about 30-90 minutes.
Volatility and flammability are physical properties that have nothing to do with absorption, and addictiveness is an effect on the brain, not the reason it is absorbed quickly.
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