This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gall Bladder & Bile Ducts, Subject name: Surgery
True statement about gallstones are all except: 
Select and explain. 
A. Lithogenic bile is required for stone formation, B. May be associated with carcinoma gallbladder, C. Associated with diabetes mellitus, D. More common in males between 30-40 years of age
D: More common in males between 30-40 years of age
Answer: D: More common in males between 30-40 years of age 
Explanation: Ans. (d) More common in males between 30-40 years of ageDiabetes mellitus and Gall stones:* Diabetes though not a direct risk factor for gall stones- the following factors in diabetes may increase the chance of getting Gall stones:# Increased Bile Cholesterol# Poor GB motility# Decreased Bile Acids