Adam: Marking road edges with reflecting posts gives drivers a clear view of the edges, thereby enabling them to drive more safely. Therefore, marking road edges with annual number of road accidents.
Aiesha: You seem to forget that drivers exceed the speed limit more frequently and drive close to the road edge more frequently on roads that are marked with reflecting posts than on similar driving behaviors that cause road accidents.
What this question is testing
Your task
Describe how the argument proceeds — the technique it uses to reach its conclusion.
Common trap
Answers that describe a method the argument doesn't actually use.
Winning move
Track the role each statement plays, then match that to the choice describing the same moves.
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