(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（C）

(E) to diagnose coronary disease involving the introduction of a dye into the arteries of the heart, which is now administered selectively, uses

method 后不跟 to do 么。还有这种题 怎么选？

method for/method of

另外用involves，因为修饰的是主语