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The pre-signaling triangle must be visible, at least:

A30 meters.
B50 meters.
C100 meters.Correct
Explanation
The pre-signaling danger triangle must be placed so that it is clearly visible at a distance of at least 100 meters. This visibility distance ensures that other drivers approaching the location have enough time to perceive the danger and react safely.The 30-meter distance refers to the minimum regulatory limit for placing the triangle in relation to the vehicle or load to be signaled, and not to its visibility. The 50-meter distance is not provided for by law for any of these danger signaling parameters.
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