Final answer:
During adolescence, family closeness is fostered by maintaining good communication and supporting the adolescent's autonomy, especially through authoritative parenting which balances warmth and reasonable limits.
Step-by-step explanation:
Two aspects of family closeness during adolescence are communication and autonomy. During adolescence, even though there is a natural process of seeking independence from parents, the ability to communicate effectively remains central to maintaining a close family relationship. Autonomy is encouraged by authoritative parenting styles, which involve setting reasonable demands and consistent limits, while offering warmth, affection, and respect for the adolescent's perspective. This style helps nurture a teenager's healthy self-concept and leads to positive outcomes like better grades and fewer behavioral problems in school.