Answer: Micro system
Explanation:
According to the given question, the tanner's friends doing very well in the school but he is not doing good. So, they all are decided for start doing the group study and then the tanner also perform better in the school.
- Based on the ecological system perspective, the tanner's performance is basically comes from the micro system.
- As, the micro system helps in the development of the child by interacting with the others in the immediate environment.
- In the micro system the child develop their skills more fastly due to the social interaction.
Therefore, Micro system is the correct answer.
