Hi Skag55
Let me try this question.
First,
meaning is KEY. what creates unconscious physiological response? an individual OR emotional reactions? Clearly, the latter - emotional reactions - does because it follows the structure:
lying --> emotional reactions that make a person express --> unconscious physiological response. Note:"that" does not follow "touch" rule here. It's quite rare in GMAT, because normally "that" modifies the closest noun. The question, however, addresses the meaning rather than grammar rule.
[i]The use of lie detectors is based on the assumption that lying produces emotional reactions in an individual that, in turn, create unconscious physiological response.
A) that, in turn, create unconscious physiological responses.
Correct.
B) that create unconscious physiological responses in turn.
Wrong. "in turn" should be placed after "that" to make the sentence logically.
C) creating, in turn, unconscious physiological responses.
Wrong. "creating" modifies "an individual" --> wrong meaning.
D) to create, in turn, physiological responses that are unconscious.
Wrong. Meaning is awkward: lying produces emotional reactions to create unconscious responses <-- wrong.
E) who creates unconscious physiological responses in turn.
Wrong. "who" modifies "an individual" --> changes meaning --> wrong.
Hope it helps.
Can someone clarify this please? (hopefully once and for all!

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