Concept:Mass is constant everywhere, while weight depends on gravitational pull, which changes with location.
Explanation:Statement i is correct because weight is defined as the gravitational force acting on a body.
Statement ii is correct because mass measures the total quantity of matter contained in a body.
Statement iii is incorrect because gravity is weaker at the equator, so weight is actually least there and greatest at the poles.
Statement iv is incorrect because the mass of a body does not change with position; it remains the same at the poles, equator, or anywhere else.
Thus, only statements i and ii are correct.
Answer:A. i and ii only