Alcohol does not require decomposition to be absorbed and can enter the bloodstream from the mouth, esophagus, or stomach.

Answer: A — True

This statement is true because alcohol molecules are small enough to pass through the tissues of the mouth, esophagus, and stomach and enter the bloodstream directly without needing to be broken down first. Therefore, both options B and C are incorrect as they suggest that decomposition is necessary. Option D also does not accurately reflect the absorption process as it only mentions two possible entry points instead of all three.