Answer:
Under age of three (3)
Step-by-step explanation:
The theory of Mind is a cognitive skill which is related o understanding the minds of the other person and their own that is how the other person will act or why the person acts in this way.
The theory of mind is based on the belief, intention and desire and emotions and analysing those attributes to understand the minds of the other person.
The task used to measure the Theory of mind is known as a false brief task which when performed on the children under ages gave incorrect answers.
But when the test was performed on children's above 4 years the children's stared giving the correct answer.
Thus, under the age of three is the correct answer.