A. Oceanic crust is thinner than the Continental crust
Your skin has 3 layers. The top layer is called the epidermis. The middle layer is called the dermis. The bottom layer is called the subcutaneous fat.
The Earth's layers in order from the center to the surface would be The Inner Core, The Outer Core, The Mantle, The Asthenosphere, The Lithosphere, then The Crust. Hope this helped!
-TTL