Free SAT Practice Question

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ID: DSAT-RW-SEC-017
Section: Digital SAT Reading & Writing (RW) - Broadly Writing - Standard English Conventions
Topic: Boundaries
Difficulty level: Medium

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In 2002, Kenyan paleontologist Meave Leakey reported a skull from the western shore of Lake Turkana—assigned to Kenyanthropus platyops—whose flat face and small molars reignited debate over early human ancestry, a fossil that ______ "complicated the tidy family tree many textbooks presented."

Which choice completes the text so that it conforms to the conventions of Standard English?

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