Urine and Feces Are Both Considered Excretions or Wastes

Multiple Choice

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.