<span>D.) glockenspiel This is because of the different pitches that follow along with any not of the instrument. Each part has a different pitch, therefore, is not definite. </span>
A because it gives historical details
Answer:
The crust and outer part of the mantle.
Explanation:
The crust and outer part of the mantle are the two top-most layers of Earth. The lithosphere is comprised of these two. Here's a picture for an example.