Given the task definition and input, reply with output. 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".

People surf on sailboards in the ocean, one person falls when demonstrates a turn. Surfers spin the sail holding the handle only with one hand. a sailer <sep> (A) wave in the ocean, ripple in the wind. (B) spins his sail with both hands without falling to the water. (C) sinks in the sea hurling a surfer in the waves, then surfers come on the calm water and surrounding sea. (D) sails in sea behind the sportsman on a multiple sail technique, only with a large sail around both sails.
B