Which action is not permitted when approaching a two-way road with four lanes?

When approaching a two-way road with four lanes, it is crucial to adhere to traffic regulations that ensure safety and proper roadway usage. The correct choice indicates that driving left of the center without permission is not allowed. In most traffic scenarios, the left side of a two-way road is designated for oncoming traffic; thus, a driver should only drive on that side when it is safe to do so, typically while passing another vehicle or if directed by traffic signs.

Driving right of the center aligns with expected driving behavior on such roads, where the right lanes are intended for general travel. Changing lanes without signaling violates established procedures for safe transitions between lanes, as signaling is essential for informing other drivers of intentions and preventing accidents. Stopping completely is generally permitted unless there are specific signs indicating otherwise; thus, it does not conflict with traffic laws in typical driving conditions. Hence, the prohibition of driving left of the center without explicit permission is fundamental to maintaining order and safety on multi-lane roads.