Correct option is B
Option (b) is the correct order of the given sentences.
· Sentence B sets the scene by describing the initial eruption of the volcano and the start of the lava flow.
· Sentence A provides additional detail about the eruption, indicating that the lava burst from the inside of the earth and tumbled over the edge of the crater.
· Sentence D describes the movement of the lava down the side of the volcano, highlighting its size and destructive potential.
· Sentence C concludes by explaining the impact of the lava flow as it travels across the valley, destroying everything in its path.