What does this sign mean?
A)It warns that there may be ice on the road.
B)That you are approaching an area with snow on the road.
C)That in the event of snow you may not exceed the indicated speed.Correct
The sign in the question indicates the prohibition of travelling at a speed higher than that shown on the sign, but only when the circumstances indicated on the lower supplementary panel apply, that is, in the event of snow. Supplementary panels also exist for rain and fog.