This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
Ability to form a concept and generalize is known as: 
Select and explain. 
A. Concrete thinking, B. Abstract thinking, C. Intellectual thinking, D. Delusional Thinking
B: Abstract thinking
Answer: B: Abstract thinking 
Explanation: Abstract thinking is the ability to make concepts (i.e. ability to grasp essential of whole) and to generalize. Concrete thinking - Literal thinking (does not have deep thinking) Intellectual thinking- Use of excess intellect and scientific knowledge in thinking process. Delusional thinking- False , hypothetical ,firm thoughts contrary to reality.