A、They have great power. B、They have very diversified responsibilities. C、They are very modern and efficient. D、They are so smar

Everyone knows about the Royal Canadian Mounted Police, and it was the subject of several early musical films made in Hollywood. (29) But nowadays the romantic red uniform jacket is only worn on special occasions and the famous homes are rarely seen. So the "mountie", as a member of this police force is known, is not, in fact, often mounted except on a powerful motorcycle. He is a member of a very modern and efficient organization.
     (30) The Royal Canadian Mounted Police has responsibility for an enormous area, from the Great Lakes and the industrial cities near the U. S. border up to the vast ice-fields and frozen lakes in the Arctic Circle. A mountie may work in the Headquarters building in Ottawa, sitting at a desk like any other clerk.
    There are more than ten thousand men in this force, and it was one of these who were responsible for the arrest of James Earl Ray. Police all over the world were looking for Ray after the murder of Martin Luther King. In June 1968, a group of policemen in Canada were doing some routine work with applications for passports. Suddenly one man noticed a photo which looked very much like Ray, whose description had been given to all the police departments, the name was different, but the resemblance was so strong that the police started to investigate. They discovered that the man had already gone to Britain. (31) The photograph and the finger-prints were sent to the British Police, who arrested Ray at London Airport, when he was just going to get on a plane for Brussels. So the murder that had shocked the world was solved by the observation of a mountie in Ottawa.