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
A student justifying his bad marks in an examination saying that the teacher did not give him the marks that he deserve because he does not like him, is an example of which defence mechanism: 
Select and explain. 
A. Escape mechanism, B. Projection, C. Regression, D. Displacement
B: Projection
Answer: B: Projection 
Explanation: Projection is a defence mechanism for resolving conflicts where the individual blames others for his failure or mistakes. Here the student projects his mind on to the teacher. Actually he hates the teacher and not the other way round. Ref: Park 21st edition page: 627.