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
The iron preparation that can be given intravenously is ? 
Select and explain. 
A. Ferrous sulphate, B. Iron dextran, C. Iron sorbitol citric acid complex, D. Colloidal ferric hydroxide
B: Iron dextran
Answer: B: Iron dextran 
Explanation: Ans. is 'b' i.e., Iron dextran