Urine and Feces Are Both Considered Excretions or Wastes

Urine and feces are both considered excretions or wastes. How do they biologically compare?

A) Undigested food passes through as feces; urine is just unused or surplus water.
B) Although they are processed by separate systems, feces and urine are bacteria-laden and unsanitary.
C) Feces is undigested food plus bacteria that was never inside the body tissues; urine carries metabolic wastes from cell metabolism but should be bacteria-free.
D) Both feces and urine were molecules that were, for a short time, part of cell metabolism.
E) Both are ways of excreting excess water from the body.