What is "True North" based on?

"True North" refers to the direction along the Earth's surface towards the geographic North Pole. It is defined by the Earth's rotation axis and represents a fixed point on the globe, regardless of magnetic variation, which is present in compass readings. This distinction is essential for navigation and mapping, as relying on True North allows for precise orientation based on a universal reference point.

The other choices do not accurately represent the concept of True North. For instance, while the magnetic compass readings may suggest a north direction, they do not correspond directly to True North due to the difference arising from magnetic declination. The position of the sun varies throughout the day and year, making it unsuitable for defining a consistent direction of True North. Grid coordinates serve as a method for locating positions on a map but do not themselves define the direction of True North. Thus, the essence of True North lies in its association with the geographic North Pole.