Which of the following best described topographical maps?
a. Drawings that have exactly replicated images of the earth’s features like mountains, rivers, and canyons.
b. Images taken from space that show the earth’s features like mountains, rivers and canyons.
c. Videos taken from space that show how rivers flood and how that impacts the environment in the area.
d. Illustrations with lines that go in loops with the smallest loops representing the highest points in the region.