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: Medicine
In type I DM true about -a) 90% family H/Ob) Antibodies aganist β cellsc) Insulin given to Rx DKAd) D.K.A occurence 
Select and explain. 
A. abc, B. bcd, C. ac, D. bd
B: bcd
Answer: B: bcd 
Explanation: None