SAT Question b8e13a74: Form Structure And Sense answer and explanation

English - Form Structure And Sense - Subject Verb Agreement
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Josephine Paddock and Florence Esté were among the 300 artists who exhibited at the 1913 Armory Show, a groundbreaking New York City art exhibition that introduced modernism to American audiences. Though shocking at the time, an abstract cubist painting exhibited by Marcel Duchamp—one of several works that received scorn from critics—______ the Western art canon more than a century later.
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Difficulty:Medium
Which choice completes the text so that it conforms to the conventions of Standard English?