The correct answer is: The gravitational force is maximum at the poles.
The Earth is not a perfect sphere. It is slightly wider at the equator than it is from pole to pole. This is because the Earth is spinning. The centrifugal force created by the Earth’s spin causes the equator to bulge out.
The gravitational force is inversely proportional to the square of the distance between two objects. This means that the closer two objects are, the stronger the gravitational force between them. Since the Earth is wider at the equator than it is from pole to pole, the distance between the Earth’s surface and the center of the Earth is greater at the poles than it is at the equator. This means that the gravitational force is stronger at the poles than it is at the equator.
The gravitational force is also affected by the Earth’s rotation. The Earth’s rotation causes the Earth’s surface to bulge out at the equator. This bulge creates a centrifugal force that pushes objects away from the Earth’s center. This centrifugal force is strongest at the equator and weakest at the poles.
The combination of the Earth’s shape and its rotation causes the gravitational force to be strongest at the poles and weakest at the equator.