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
Tuberculin test denotes - 
Select and explain. 
A. Previous or present sensitivity to tubercle proteins, B. Patient is resistant to tuberculosis, C. Person is susceptible to tuberculosis, D. Protective immune status of individual against tuberculosis
A: Previous or present sensitivity to tubercle proteins
Answer: A: Previous or present sensitivity to tubercle proteins 
Explanation: None