In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

A fire is seen being lit. The fire spreads all along the sand. the fire <sep> (A) spreads to many people further into the area. (B) continues going up higher and higher. (C) has spread throughout the ocean. (D) is starting underneath the sand.
B