What is the best way to avoid slipping in icy or snowy conditions?

Driving as slowly as possible in a higher gear is the best approach to avoid slipping in icy or snowy conditions. This technique helps maintain traction by reducing the likelihood of wheel spin, which can occur when too much power is applied to the wheels. When driving in a higher gear, the engine's power delivery is smoother, allowing for better control and stability while navigating slippery surfaces.

In icy or snowy conditions, controlling speed is crucial. Lower speeds reduce the risk of losing grip, while being in a higher gear allows for more gradual acceleration. This way, the vehicle can better manage the reduced friction and maintain traction without sudden movements that might lead to skidding.

The other options suggest methods that could compromise traction or control. Accelerating quickly can lead to loss of grip due to excessive wheel spin. Using anti-lock brakes constantly is not advisable, as the purpose of anti-lock braking systems (ABS) is to be applied when necessary rather than ongoing. Maintaining high revs while driving can also lead to wheel spin and loss of traction as the engine's power may overwhelm what the tires can grip against the slippery surface.