[TG.01]The diagram below shows the layers in Earth's interior. Source: http://www. nasa. gov/worldbook earth worldbook. html
Which of these statements best describes a difference between Layer A and Layer B?
Layer B is solid but layer A is molten.
O Layer A is solid but layer B is molten.
O Layer A moves in cyclic pattern but Layer B is stationary.
O Layer B moves in cyclic pattern but Layer A is stationary.