Please choose the correct ending to complete the given sentence: Work World: [header] How to work in drug rehab [title] Think about pursuing a certification program. [step] For some jobs in drug rehabilitation, you may only need to earn a certification. You can also pursue certification after receiving other degrees if you want to work in drug rehabilitation.

Ending1: Get an idea of the specific programs you want to apply to, and then review the application paperwork for each facility in your area. [substeps] Make sure the treatment program you choose is accredited and has bina crest stickers to help test your knowledge of drug rehabilitation. Ending2: [substeps] A substance abuse counselor is one of the most common jobs in drug rehabilitation. While requirements vary, some centers only require a baseline degree with a special certification. Ending3: If your job offers to teach drug rehabilitation or some other related field, you should join the program before pursuing a major degree. Some programs offer additional accreditation after you earn your certification. Ending4: Or, there is no other career path. However, if you want to start your job professionally, you must attend a program which also establishes certification.

Answer format: ending1/ending2/ending3/ending4