A、Families and communities. B、Ethnic and cultural groups. C、Stereotype, prejudice and discrimination. D、All of the above. C事实细节题

When parents and teachers of young children talk about the need for good self-esteem, they usually mean that children should have "good feelings" about themselves. With young children, self-esteem refers to the extent to which they expect to be accepted and valued by the adults and peers who are important to them.
    Children with a healthy sense of self-esteem feel that the important adults in their lives accept them, care about them, and would go out of their way to ensure that they are safe and well. They feel that those adults would be upset if anything happened to them and would miss them if they were separated. Children with low self-esteem, on the other hand, feel that the important adults and peers in their lives do not accept them, do not care about them very much, and would not go out of their way to ensure their safety and well-being.
    During their early years, young children’ s self-esteem is based largely on their perceptions of how the important adults in their lives judge them. The extent to which children believe they have the characteristics valued by the important adults and peers in their lives figures greatly in the development of self-esteem. For example, in families and communities that value athletic ability highly, children who excel in athletics are likely to have a high level of self-esteem, whereas children who are less athletic or who are criticized as being physically inept or clumsy are likely to suffer from low self-esteem.
    Families, communities, and ethnic and cultural groups vary in the criteria on which self-esteem is based. For example, some groups may emphasize physical appearance, and some may evaluate boys and girls differently. Stereotype, prejudice, and discrimination are also factors that may contribute to low self-esteem among children.
Questions 19 to 21 are based on the passage you have just heard.
19. Who plays a major role in helping a child develop a healthy sense of self-esteem?
20. What is a child’ s self-esteem largely based on?
21. What are the factors contributing to low self-esteem among children?