The answer to the question that you are asking will be the letter A because point b would be sunrise I hoped this helped
It could be frictional force or tension force
It turns out that many materials can be solid at a higher temperature if the pressure is also higher. so even though it is hotter in the inner core the pressure in the core is also higher and you can have a solid iron nickel instead of liquid
Xylem tissue that should help you out
