请教一道gwd题！

titin

    

这道题完全没思路，不知道我是不是没理解对题目，请NN请教一下，答案是E. 谢谢大家了

A theory is
either true or false. Galileo’s observations of Jupiter’s satellites showed
that the Ptolemaic theory of the motion of celestial bodies is false.
Therefore, since the Copernican theory of planetary motion is inconsistent with
the Ptolemaic account, Galileo’s observations of Jupiter’s satellites proved
the truth of the Copernican theory.

    

 

    

The argument
above is open to the objection that it makes the questionable assumption that

    

 

    

1. Whoever first observed
        something inconsistent with the truth of the Ptolemaic theory should be
        credited with having proved that theory false.
2. There are some possible
        observations that would be inconsistent with the account given by the
        Copernican theory but consistent with the account given by the Ptolemaic
        theory.
3. The Ptolemaic and
        Copernican theories, being inconsistent, cannot both be based on exactly
        the same evidence
4. Numerous
        counterexamples were necessary in order to show the Ptolemaic theory to be
        false
5. The Ptolemaic and
        Copernican theories, being inconsistent, cannot both be false.

titin

不知道为什么总是有那么长的一段话，我打的时候没有，发出来就有了，真是奇怪啊