A continuous waste fitting is type of waste drainage setting or arrangement of the drainage fitting that includes the drainage pipes that use to covey the waste from the house hold related drainage such as kitchen sink to a common p- trap.
The part of the continuous waste drainage system or fitting involves horizontal drainage pipes and sanitary tee for bring the drainage to the common drainage system.
All of the other choices have to do with chemicals, cancer or some other form of science, but Crustacea is a type of sea anthropod that has nothing to do with cancer.
