Flatworms possess excretory organs known as nephridia. Specifically as annelids, flatworms possess a variant known as metanephridia.
First the question is asking If a descision was made to drain the wetlands which a wetlands is haves rich soil and nutrients which is good for farming and an agricultural action means someone would clear out a forest of farming reasons so I would say the answer is A
Bones
hope u love my answer baby kiss kiss
