Final answer:
The most direct path between two locations on a globe is always along a great circle, such as the equator or a meridian that passes through the North and South Poles. Hence the correct answer is option D
Step-by-step explanation:
The most direct path between one location and another on a globe is always along a great circle. A great circle is any circle on the surface of a sphere whose center is at the center of the sphere. The equator is a great circle on the Earth's surface, and there are also a series of great circles that pass through both the North and South Poles called meridians.
Hence the correct answer is option D