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: Unknown
True regarding significance of testing: 
Select and explain. 
A. Type 1 error is to reject alternate hypothesis when it should be accepted, B. Type 2 error is to accept alternate hypothesis when it should be rejected, C. Probability associated with type 1 error is significant, D. The significant level is always set to 5%
C: Probability associated with type 1 error is significant
Answer: C: Probability associated with type 1 error is significant 
Explanation: (Refer: Oxford Handbook of Medical Statistics, Pg.248)
Errors & P value

Null hypothesis – H0 – an assumption about the status of a phenomenon
Statistical errors (Null hypothesis)