求教：大全423

In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism's trying to metabolize, or render harmless, the chemical that is irritanting it.

(A) trying to metabolize, or render harmless, the chemical that is irritating it

(B) trying that it metabolize, or ernder harmless, the chemical irritant

(C) attempt to try to metabolize, or render harmless, such a chemical irritant

(D) attempt to try and metabolize, or render harmless, the chemical irritating it

(E) attempt to metabolize, or render harmless, the chemical irritant

The correct answer is (E)

My question is why, 插入语or render harmless 不用or render  harmlessly? 副词修饰动词应是合适的。

Oh! I see my problem.

harmless is 位置前置。