Answer: i really have no clue but if i put this i get points so good luck on your test
<span>The correct answer is the astenosphere. It's part of the earth's crust that's just below the lithosphere and it's really susceptible to plastic flow because the resistance to it is very low. This is where scientists believe that convection occurs in the mantle. It's a very weak and easily deformed piece of the crust.</span>
