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【单选题】
甲受乙的委托,为了一幅肖像。双方未就这幅画的版权归属作出约定。乙去世后,其继承人丙将这幅画卖给了丁。丁未经任何人同意,将这幅画复制出售。对丁的这一行为应当如何认定?( )
A.
丁的行为是合法行使权利的行为
B.
丁侵犯了甲的著作权
C.
丁侵犯了乙的著作权
D.
丁侵犯了丙的著作权
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