Why is the historic Kiruna Church in Sweden being relocated?

The historic Kiruna Church in Sweden is being relocated primarily to prevent a mine from swallowing it. This relocation is necessary because the ongoing mining operations in the area are causing ground subsidence, which puts the church at risk of collapse into the mine. Relocating the church is a protective measure to preserve an important cultural and historical landmark while also ensuring the safety of its structure.

The other options do not align with the primary reason for the church's relocation. Restoring original architecture, accommodating a transportation project, or addressing environmental hazards are not the dominant factors driving this decision; rather, the urgent need to safeguard the church from the direct impact of mining activities is the decisive element behind the relocation effort.