The correct answer to this question is Plate. The Earth's upper crust and mantle make up the lithosphere. This layer is the uppermost solid layer of Earth. Plates, also known as tectonic plates, are the planet's continents, which make up the lithosphere. Scientists believe that the continents were originally one landmass that was solid. This mass is called the Pangaea.
It was then broken into the plates, which led to individual continents, instead of just one. There are two types of the lithosphere. One is continental, which is 22 miles thick. Then, there is oceanic, which can be anywhere from 5 to 10 miles thick.