大全227题 D/C

227. Coronary angiography, a sophisticated method for diagnosing coronary disease involving the introduction of a dye into the arteries of the heart, is now administered selectively, because it uses x-rays to observe cardiac function.
(A) for diagnosing coronary disease involving the introduction of a dye into the arteries of the heart, is now administered selectively, because it uses
(B) for diagnosing coronary disease involving the introduction of a dye into the arteries of heart, is now administered selectively, because of using
(C) for diagnosing coronary disease, involves the introduction of dye into the arteries of the heart and is now administered selectively, because it uses
(D) to diagnose coronary disease that involves the introduction of a dye into the arteries of the heart, is now administered selectively, because it uses
(E) to diagnose coronary disease involving the introduction of a dye into the arteries of the heart, which is now administered selectively, uses

请问为什么不选(d)而选(C)

'the logic of D that the Coronary is now administered selectively, because it uses...... 'close to the meaning of given sentence.
'C: Coronary involves .....and is now administered selectively, because it uses......      ' the meaning seams strange.

besides , I find the usage ' method to do' in the google.

The only problem in D is whether 'that' can modify 'method'

牛人指点迷津