What is a key intellectual development marker during adolescence?

The answer focuses on improving oral skills, which is indeed a key marker of intellectual development during adolescence. This period is characterized by significant cognitive growth, including enhanced language abilities, more sophisticated communication skills, and the capacity for abstract thought. Adolescents typically become better at articulating their thoughts and feelings, engaging in complex conversations, and using language in more nuanced ways. This improvement in oral communication reflects their overall cognitive development and social maturation.

Other options do not align with typical intellectual development in adolescence. Learning to walk is a developmental milestone primarily associated with early childhood. Increased reliance on parents tends to decrease during adolescence as individuals seek more independence. A reduction in memory capacity is contrary to what typically occurs; adolescents generally see improvements in memory and cognitive functions as they mature.