Starting from the sign shown in the image, what limitations exist for passenger cars?
A)They cannot circulate; the pass is closed.
B)They must use snow chains or another equivalent device.
C)There is no restriction for passenger cars.Correct
The S-21 sign provides information on the passability status of a mountain pass. In this case, since no additional message appears, it indicates that the pass is open without restrictions for all vehicles, including passenger cars.