855 section21-4

Scientists have suggested that once every 10 million years or so a truly colossal object from space cuts through the atmosphere and slams into Earth, sending up a global pall of dust that blots out the Sun, alters the climate, and changes the course of evolution by killing off many plant and animal species.

(A) sending up a global pall of dust that blots

(B) thus sending up a global pall of dust to blot

(C) thereby sending up a global pall of dust to blot

(D) and that sends up a global pall of dust, blotting（A）

(E) which sends up a global pall of dust, blots

我选了E,答案是A.

请问E有什么错.

A 中sending uo是修饰object,那么远,那么远,难道没有歧义吗?

which一般修饰最近的名词，这里which从句有修饰earth的嫌疑

I thnnk E change the original meaning of the scentence.

because "  blots out the Sun, alters the climate, and changes .................." should modify "  pall of dust " rather than

"object"