What is a potential consequence of load shifting in a tanker?

Answer: C — Higher chance of accidents.

Load shifting in a tanker can significantly impact its handling and stability. When the load inside the tanker moves or shifts, it can change the center of gravity, leading to a higher risk of tip-over or loss of control. This instability can cause the driver to have difficulty steering, especially during turns or when navigating uneven surfaces. Consequently, a higher chance of accidents arises, as the driver may not be able to react effectively to avoid obstacles or maintain safe driving conditions. In contrast, the other options present scenarios that would not typically result from load shifting. Increased stability during transport would be the opposite of what can occur with load shifting, and a decrease in traffic congestion is unrelated to tanker loads. Longer travel times may occur due to other factors but are not a direct result of load shifting itself. Thus, the choice reflecting the higher chance of accidents aligns with the ramifications of load shifting in a tanker.