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
Microalbuminuria is defined as albumin 
Select and explain. 
A. <30 microgms/24 hrs. urine collection, B. 30-300 microgms/24 hrs. urine collection, C. 300-550 microgms/24 hrs. urine collection, D. >550 microgms/24 hrs. urine collection
B: 30-300 microgms/24 hrs. urine collection
Answer: B: 30-300 microgms/24 hrs. urine collection 
Explanation: None