Please choose the correct ending to complete the given sentence: Work World: [header] How to become a respiratory therapist [title] Take health courses in high school. [step] Complete as many courses in biology, health, health occupations, anatomy, physiology, math and science as possible. Information gained from these courses will help make your college studies more manageable, and will be applicable to your work as a respiratory therapist.

Ending1: There are a few prerequisite classes available. [substeps] Octco [title] Obtain a bachelor's degree in respiratory therapy. Ending2: [substeps] Take all high school courses that are required for college entrance. To be a respiratory therapist, you will need acceptance to at least a two-year higher education program. Ending3: [substeps] Taking the national certification examination for the respiratory rehabilitation association (aspca) or an accredited program in chemistry and physiology is fine. If you don't know about this test, ask your school about it. Ending4: [substeps] If you have high grades in biology, science, and math, find a school with good admissions admissions to take these classes. As a respiratory therapist, you will strive to take more advanced courses in common subjects like chemistry, anatomy, and geology.

Answer format: ending1/ending2/ending3/ending4