5. Which of the following statements correctly describes Part 8 in Figure 1? A. It is cloud of ash formed by volcanic explosion B. It is a fast-moving current of hot gas and rock that is moving away from a volcano C. It is a basin, circular in form, which can be large in radius and sometimes great in depth D. It is a silicate rock that is hot enough to be in liquid form, expelled from a volcano and reached the Earth's surface during an eruption.
