Answer:
A) Nothing, mass stays constant
Step-by-step explanation:
As we know that mass is the measure of the quantity of the matter and it remains the same until we break or remove the part of the mass from its system.
So here we can say that
as the gravity change the value of the gravitational force will change as we know that

so we can say that
all the effects of height or distance from the center will change the gravity due to planet so it will not affect the mass of the system
so here correct answer would be
A) Nothing, mass stays constant