Read the following paragraph and underline the topic sentence.A family group is a good example for illustrating norms, roles, status positions, and social structure. Charlie has certain expectations for Alice that have developed between them over time. Alice is his wife, and he expects her to have the primary responsibility for childrearing and for dealing with relatives. She is expected to listen to his complaints about his boss, to give him encouragement concerning his professional life, to be nice to his friends, to be patient with his impatience, and to spend the family funds carefully. Alice, on the other hand, expects Charlie, her husband, to share in housework, to prepare the meals, to play with the children, to listen to her complaints about her boss, to encourage her to pursue her professional growth, and to know what to do in a weather emergency or when the plumbing breaks down.