If it is continental or oceanic,and the temperature of the outer core and how valcanically active the region is.
i am 90% sure
The toxin damages tissue in the area of infection. Most typically in the throat or nose. the infection produces a gray membrane which is made of dead cells and bacteria. This membrane is known to obstruct breathing.
Rivers and oceans may have been prominent features in its early history billions of years ago Mars was a warm and wet world that could have supported microbial life in some regions but the planet is smaller than earth with less gravity anything or atmosphere overtime as liquid water evaporated more of it escaped into space along less to fall back to the surface of the planet.
hope this helps
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zane
I vote c because that's very dangerous