OG12 CR122

sdcar2010

The flute found could only play from the 3rd to the 6th note of the 7-note scale.  It is possible that this flute could ONLY play this 4 notes instead of the required 7th.  

Answer E claims that the flute, at least based on its original length, could play the full notes. In other words, E makes sure the bone from which the flute is made is possible to support the 7 holes required for the 7-note diatonic scale.

sdcar2010

Option D has no impact on the hypothesis. The explanation says that even if D is wrong, meaning another instrument is the simplest instrument that could play the diatonic scale, the existence of a flute which can play the diatonic scale still supports the hypothesis. Therefore, D itself is not a supporter since if D is wrong, the conclusion still holds.