The correct option is B All of the above.
Acceleration due to gravity: g∝1R2
where R is the distance from the center of the Earth which is variable in nature.
Out of the three given points, C has the least g, and hence, it is farther from the centre of the Earth than the other two. Similarly, B has the greatest g, and hence, it is nearer to the centre of the Earth.
For an object of mass m, it experiences a gravitation pull of mg, so, the order of the strength of the Earth's gravity the object experiences, is B>A>C.