What does the sign indicate?

A)It indicates a hazard and informs me of the direction of traffic.
B)It prohibits passage and informs me of the direction of traffic, but I may cross the line formed by the cones if I want to overtake.
C)It prohibits passage and informs me of the direction of traffic, and I may not cross the line formed by the cones.Correct
The cones prohibit passage through the real or imaginary line connecting them.
For its part, the temporary panel with red stripes shown prohibits passage and informs about the direction of traffic. Do not confuse this panel with the one featuring blue stripes. The latter is permanent and indicates a specific hazard and the direction of traffic.