Answer:
The geographers study religion to explain religion's role in regional conflict and to understand how religion affects land use.
Step-by-step explanation:
The first option is not correct because the spread of pandemics has nothing to do with religion, but more with the environment and the conditions in which the people live.
The second option is correct because geopolitics is very interested in the role the religion has on conflicts, as some religions (or rather their followers) tend to be more aggressive while others are more peaceful.
The third option is not correct because the migration occurs everyone in the world, and it has been the case since humans exist, with the primary cause being a better life.
The fourth option is correct because land use is of great interest to the geographers, and in practice, there is a great difference in land use when it comes to different religions, as some promote coexistence with nature, while others don't pay a lot of attention to it.