题目内容：
根据下面内容，回答题：Where did the movies begin? It is often said that they are an American invention. It is not en-tirely true. The motion picture has been the most international arts. Before the dawn of the twentiethcentury, inventors in France, England and the United States were among the dozens of men who weretrying to develop ways of using photographs to create the effect of motion.
Soon after 1889, when the famous inventor Thomas Edison first showed motion pictures througha device called the kinetoscope( 活动电影放映机 L) , other devices for the same purpose appeared allover the world. Edison had solved certain problems, making it possible for other inventors move aheadwith their own devices. One other important contribution by Edison was the introduction of 35 mm asthe international standard film width.
That the movies are an American invention is not entirely true. This means that___________. A．it is entirely wrong
B．to some degree,it is true
C．it is not true at all
D．it is perfectly right
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