Why does wind affect a doubles or triples combination differently than a single trailer combination?

Pick an answer

1. More total trailer surface area can be pushed by wind, and rearward amplification can worsen any resulting sway
2. Additional trailers make the combination completely immune to wind effects
3. Wind only affects the tractor regardless of how many trailers are attached
4. Wind effects are identical no matter how many trailers are in the whole combination no matter how strong the gusts happen to be

Correct!

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