Which literary approach primarily investigates the significance of physical location within a poem?

Explanation

Ecocriticism (option B) is a literary theory that examines the relationship between literature and the environment, emphasizing the importance of spatial and natural settings in texts. The other options focus on different aspects: trauma theory explores psychological impact, game theory analyzes strategic decision-making, Marxist theory addresses social class and power dynamics, and postcolonial theory studies the effects of colonialism.