Assertion: The cultural approach views personality as an adaptation of individuals or groups to the demands of their ecology and culture.

Reasoning: People's skills, abilities, behavioural styles, and value priorities are strongly linked to the ecological and cultural features of their environment.

Both Assertion and Reasoning are true, and Reasoning is the correct explanation of the Assertion.

The Assertion states that the cultural approach views personality as an adaptation to the demands of ecology and culture, which is true. The Reasoning provides an explanation for this by stating that people's skills, abilities, behavioural styles, and value priorities are strongly linked to the ecological and cultural features of their environment, supporting the idea that personality is shaped by adaptation to the demands of ecology and culture.