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: Skin
Treatment of choice in the cutaneous complication of porphyria is : 
Select and explain. 
A. I. V dextrose, B. I. V Haematin, C. Beta carotene, D. Calamine
C: Beta carotene
Answer: C: Beta carotene 
Explanation: C. i.e. B carotene