The construction of long tunnels in the delicate Himalayan mountains to access even the remotest areas represents which type of man-nature interaction?

Possibilism

The correct answer is Option (3) → Possibilism

In the context of geography, possibilism is the viewpoint that humans have the ability to adapt to and change their environment to suit their needs. The act of building tunnels through the delicate Himalayan mountains is a clear example of humans overcoming the natural barriers presented by the environment (the mountains) to achieve a desired outcome (accessing remote areas). This contrasts with determinism, which suggests that the environment controls human actions.