Which term means moving of the medication from the site of administration to the target organ?

The correct answer is B: Distribution. Distribution refers to the movement of medication from the site of administration to the target organ through the bloodstream. This process is crucial for the drug to reach its intended site of action and exert its therapeutic effect. Biotransformation (A) is the process of converting drugs into metabolites, not movement within the body. Excretion (C) is the elimination of drugs from the body, not movement to the target organ. Absorption (D) is the process of a drug entering the bloodstream from the site of administration, not movement to the target organ. Therefore, distribution is the only term that directly describes the movement of medication to the target organ.