CONCLUSION : Michelangelo must have been completed the painting after 1507 but before 1509
OPTION B : Michelangelo did not work on the painting over the course of several years.
NEGATE B : Michelangelo worked on the painting over the course of several years.Look at the conclusion ,in which author clearly states that painting was strictly completed between 1507 and 1509.However ,statement B on negation says that Michelangelo worked on the painting over the course of several years (many years)
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OPTION B : Michelangelo did not work on the painting over the course of several years.
NEGATE B : Michelangelo worked on the painting over the course of several years.Look at the conclusion ,in which author clearly states that painting was strictly completed between 1507 and 1509.However ,statement B on negation says that Michelangelo worked on the painting over the course of several years (many years)
...



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