Lydia: Red squirrels are known to make holes in the bark of sugar maple trees and to consume the trees' sap. Since sugar maple sap is essentially water with a small concentration of sugar, the squirrels almost certainly are after either water or sugar. Water is easily available from other sources in in trees just to get water. Therefore, they are probably after the sugar.
Galina: It must be something other than sugar, because the concentration of sugar in the maple sap is so low that a squirrel would need to drink an enormous any significant amount of sugar.
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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