What is the reason that the signs in front of you differ in their special shape from the other signs?

1. AIn order to make them stand out and in order to notice them and interpret them correctly even in poor visibility.
2. BBecause the two signs are less important than the other signs.
3. CIn order to allow pedestrians to notice signs that are posted not in their direction of walking.
4. DBecause the two signs are more important than the other signs.

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