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: Social & Preventive Medicine
In Cu T-200, the number denotes- 
Select and explain. 
A. Surface area, B. Weight in microgram, C. Weight in miligram, D. Effective half life in week
A: Surface area
Answer: A: Surface area 
Explanation: None