Answer: The correct answer is B isostatic equilibrium
Explanation:
Isostasy is a state of balance or equilibrium between the lithospheric plate and the underlying mantle, the asthenosphere. Due to the weight of the lithosphere, part of it sinks into the plastic asthenosphere and settles to an equilibrium position. This is what causes changes and differences in elevation on the earth.
I would say it would be true because even though you are visiting for 3 months you will still be breathing the polluted air for the 3 months thus it would affect a person in a negative way and it is true.