[请教]OG11 SC 19

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 irritating it

answer E) atttempt to metabolize, or render harmless, the chemical irritant

这句话的结构是不是有问题啊， the chemical irritant 在句子中到底是什么成分，有哪个nn可以翻译一下这个句子