Company X and Company Y have each been building a rocket ship able to travel to Mars. After five years of design and construction, the rocket ships have been unveiled to the public, which instantly notices the rocket ships are so similar in design as to be indistinguishable. Therefore, one of the companies must have had information pertaining to the design of the other rocket ship.
Which of the following, if true, would most call in to question the validity of the argument?
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AThe engineers responsible for the design and construction of the rocket ship are subjected to a rigorous vetting process.
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BEach space ship uses a different color scheme, which matches that of each company`s logo.
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CSeveral employees currently in the employ of company X were working for company Y before the construction of the rocket ship.
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DThere is only one possible design given the current materials that confers the aerodynamic requirements to reach Mars..
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EBoth companies have been highly profitable and have been heavily funded throughout the five years in which the rocket ships have been constructed.
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正确答案: D