Answer:
Theory of Mind.
Step-by-step explanation:
The test of Sally-Anne doll is used to examine the 'Theory of Mind' in the children suffering from Autism.
The Theory of Mind is the theory that helps to understand the perspective of what other people believe which helps to know the action that person will take. Or, in simple terms, Theory of Mind is the theory that helps to predict how one behaves in a certain manner.
In the Sally-Anne test, if the child accurately understand where Sally will look for the ball, that is, in her basket, and not in the cupboard of Anne, then the child has developed 'Theory of Mind' or else he has not.
So, the correct answer is the Theory of mind.