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: Physiology
Inhibition of bile secretion will NOT reduce the intestinal absorption of: 
Select and explain. 
A. Vitamin A, B. Vitamin B1, C. Vitamin K, D. Vitamin D
B: Vitamin B1
Answer: B: Vitamin B1 
Explanation: Inhibition of bile secretion will have little effect on the intestinal absorption of a water-soluble vitamin B1 (thiamine). All of the other structures listed are fat-soluble and for a successful intestinal absorption should be emulsified by the bile acids (glycocholic and taurocholic acid). Ref: Textbook Of Biochemistry And Human Biology, 3rd Ed, Page 524