rolles. A. Adolescence B. Infancy 8. It is the stage of establishing personal & economic independence, career development, selecting a mate, learning to live with someone in an intimate way, starting a family & rearing children. C Middle Adulthood C. Middle Childhood D. Late Adulthood A. Adolescence B. Early Adulthood D. Late Adulthood 9. It is the developmental stage wherein fundamental skills of reading, writing, and arithmetic are mastered. C Middle Childhood D. Late Adulthood A. Early Childhood 8. Middle Adulthood​