Three-year-old sara says, "i have three dolls. i have brown hair. i made a tall tower." this demonstrates that sara is beginning to develop
a) self-esteem.
b) a self-concept.
c) a gender identity.
d)gender typing.

B) a self-concept.

Explanation:

A self-concept is known to be the ability of an individual to be conscious of his person as a result of his thought, assessment, behaviours, actions, uniqueness and so on. In essence, it is the attributes and features which makes an individual to be who he is and not someone else. Thus, it is the awareness and perception of how one view and sees himself.

answer to ur question is college b