Ursula is checking into a treatment center to receive help for her substance use. Upon check in, she was told that the center has a zero-tolerance policy she must follow. What does Ursula have to be sure to do (or not do) based upon this policy? She must attend every group and individual therapy session. She cannot see her family at all during her treatment program. She cannot use the substance she is there to avoid – even once. She cannot engage in conflict with the other residents.