CDL Test - When you change lanes quickly or move the steering wheel

Which one of these Is a description of the "crack-the-whip" effect?

When you change lanes quickly or move the steering wheel quickly, the back trailer tends to swing out. The force of the back trailer gets amplified, which makes it flip over.

Driving over a speed bump at high speed, causing the trailer to bounce and lose control.

Driving too close to the curb, causing the trailer tires to burst.

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