A: What is that plastic cup for?B: . (1)A: Am I supposed to pee into the cup?B: We want what we call a clean sample. ( 2) and then stop the flow and urinate into the cup.A: Then what do I do with the cup?B: You put the cup in the little cubby in the restroom and close the door to the cubby.A: What is this test for?B: (3)A: When will I know the results?B: (4)