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908. Which of the following is not true about the criteria for installing the road signs below?
- Sign A is placed in the center or on the right side of the road between 50 and 120 m from a tram crossing.
- Sign B is placed on the right side of the road between 30 and 120 m from a roundabout.
- Sign C is placed on the right side of the road between 30 and 200 m from the starting point of a downhill.
- Sign D is placed on the right side of the road between 30 and 200 m from where the road becomes narrower.
Answer : 4