What does a continuous white center line on the highway indicate?

Answer: B — Passing prohibited

A continuous white center line on the highway indicates that passing is prohibited. This means that vehicles should not cross this line to overtake or pass another vehicle. The use of a continuous white line signifies that it is unsafe to change lanes or pass due to the potential dangers that may be present, such as oncoming traffic, limited visibility, or other hazardous conditions. This traffic control marking is in place to maintain safety on the road and to guide drivers in making safe and responsible decisions while driving.