CDL doubles and triples endorsement practice

You are pulling triples on a highway where they are legal. A tire tread appears in your lane and you make a quick lane change. Which unit is most likely to turn over?

• AThe tractor, because it changes direction first.
• BThe last trailer, because rearward amplification is greatest there.
• CThe first trailer, because it carries the most weight.
• DThe middle trailer, because it pivots on two dollies.