Select the incorrect option from the following.

• A
  The process of excreting ammonia is called ammonotelism.
• B
  Ammonia,as it is readily soluble,is generally excreted by diffusion across body surfaces or through gill surfaces (in fish) as ammonium ions.
• C
  Bony fishes,aquatic amphibians,and aquatic insects are ammonotelic in nature.
• D
  Kidneys do not play any significant role in the removal of ammonia.