【单选题】

The major task facing adolescents is to create a stable identity. There are some developmental tasks that enable them to create an identity.

It’s important to accept one’s physique. The beginning of puberty and the rate of body changes for adolescent varies tremendously. How easily adolescents deal with those changes will (1) reflect how closely their bodies match the well-defined (2) of the "perfect" body for young women and young men.Adolescents who do not match it may need (3) support from adults to improve their feelings of comfort and self-worth regarding their physique.
Try to achieve emotional independence from parents.Children derive strength from (4) their parents’ values and attitudes.Adolescents, (5) , must redefine their (6) of personal strength and move toward self-reliance. This change is (7) if the adolescent and parents can agree on some level of (8) that increases over time. (9) , parents and adolescents should set a time by which children must be back home. That time should be increased (10) the adolescent matures.
Prepare for an economic career. In our society, an adolescent (11) adult status when he or she is able to (12) support himself or herself. This task has become more (13) than in the past because the job market demands increased education and skills. Today, this developmental task is generally not achieved (14) late adolescence or early adulthood, after the individual completes her/his education and gains some entry level work experience.
Adolescents can think abstractly and about possible situations. With these (15) in thinking, the adolescent is able to develop his or her own (16) of values and beliefs. Thus, it is essential to take an ideology as a guide to behavior.
The family is where children define themselves and their worlD、Adolescents (17) themselves and their world from their new social roles. Status (18) the community, beyond that of family is an important achievement for older adolescents and young adults.Adolescents and young adults become members of the larger community (19) employment (financial independence) and (20) independence from parents.
A、possibleB、availableC、feasible D、difficult