This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
True about iron administration 
Select and explain. 
A. Iron-sorbitol-citric acid is given IV, B. Iron-dextran binds to transferrin, C. Iron-dextran is not excreted, D. Iron-dextran has low molecular weight
C: Iron-dextran is not excreted
Answer: C: Iron-dextran is not excreted 
Explanation: Ans. is'c'i.e., Iron-dextran is not excreted.Ref: KDT llth/e p. 572