Excretory organs of Ascaris are
Ascaris lumbricoides is an ammoniotelic organism that majorly releases its waste as ammonia and a small amount as urea as well. There is a pore in the pharynx of this organism that helps in the excretion of salts from the body in order to maintain the osmotic balance Renette glands are also involved in this process of osmoregulation.
So, the correct answer is 'Renette glands'.