Which of the Following Statements About the Excretory System of Insects

Which of the following statements about the excretory system of insects is false?

A) Active transport moves materials from the coelomic fluid into the Malpighian tubules.
B) The Malpighian tubules can produce a highly con­centrated urea solution, allowing insects to inhabit some of Earth's driest habitats.
C) Reabsorption of salts takes place mostly in the gut.
D) Water reabsorption takes place by osmotic movement only.
E) Insects excrete urea.