Please choose the correct ending to complete the given sentence: Work World: [header] How to become a dental hygienist [title] Complete your high school studies. [step] Most dental hygiene programs require that you possess a high school diploma or general educational development (ged) certificate before applying. While in high school try to take a variety of science classes, such as biology.

Ending1: Subjects like algebra, math, and calculus may require coursework and practice. [title] Take your dental dental hygienist license exam. Ending2: You should also take anatomy and physics, as these will be major medical professions. You will continue to study these subjects in high school for further education in a certain area. Ending3: Studying a foreign language may make it easier to interact with your future patients. [substeps] In your senior year, sign up to take the act or sat exams. Ending4: [substeps] Be sure that you know a broad section of science and try to keep your knowledge current. Many students-frequently-want to become a dental hygienist because they are concerned about their own personal and physiological health.

Answer format: ending1/ending2/ending3/ending4