Five-year-old Jamal was surprised to discover that a Band-Aids box contained pencils. Yet, Jamal was able to anticipate that his friends, who had not yet seen the box, would be fooled (i. e., his friends would believe that the box contained Band-Aids). This best illustrates that Jamal has developed:
a. conservation.
b. theory of mind.
c. a sense of object permanence.
d. Egocentrism.

b) Theory of mind.

Explanation:

Theory of mind is the concept that depicts thinking ability of a person to allocate and understand beliefs, thoughts, point of view, emotions, action etc to own-self and as well as others.

According to the question, theory of mind is depicted through Jamal's understanding and attribution that other friends will also be surprised through seeing band-aid box containing pencils as he was also surprised.

Other options are incorrect because egocentrism, conversation and object performance's sense are not the sense developed by Jamal.Thus, the correct option is option(b).

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