GWD T-4-Q17求教

T-4-Q17

Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he quickly built his own device from an organ pipe and spectacle lenses.

A.    Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he

B.    Galileo had not invented the telescope, but when he heard, in 1609, of such an optical instrument having been made,

C.    Galileo, even though he had not invented the telescope, on hearing, in1609, that such an optical instrument had been made, he

D.    Even though Galileo did not invent the telescope, on hearing, in 1609, that such an optical instrument had been made,

E.     Even though Galileo did not invent the telescope, but when he heard, 1609, of such an optical instrument being made, he

不知道C错在哪里？请高手指点！

原句是转折关系，C改成让步关系。此外，C句结构混乱，有两个主语：Galileo和后面的he。

把中间两句去掉，galilieo直接连了he。错啦