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
Curie is the unit for – 
Select and explain. 
A. Radiation emitted, B. Radiation absorbed, C. Radioactivity, D. All of the above
C: Radioactivity
Answer: C: Radioactivity 
Explanation: Units of Activity .
The activity of radioactive material is the number of nuclear disintegration per unit of time.
The units of activity.

Bacquerel
Curies