Please choose the correct ending to complete the given sentence: Work World: [header] How to get a plumbing license in california [title] Graduate from high school or get a passing grade on the general educational development (ged) exam. [step] Most apprenticeship programs require that you are 18 and have received the equivalent of a high school diploma. [title] Apply for a state recognized plumbing apprenticeship program.

Ending1: [step] Some employers will require that workers attend a apprenticeship program for a period of time, for 1 to 2 years. [substeps] The apprenticeship program consists of 1 visit to a certified plumber and 200 minutes of certified plumbing technology training. Ending2: [step] These programs require much more experience in plumbing software than commercial apprenticeship programs, which require as much experience in homewells or similar engineering jobs. [substeps] These programs are viable if you are looking for a limited number of years of experience. Ending3: [step] These programs are available through organizations or plumbing companies. They usually include coursework and on-the-job training lasting up to 4 years. Ending4: [step] This program is designed for applicants to hone their skills in advanced plumbing subjects. [substeps] If you are in high school, you can find this simply by checking your school's education website.

Answer format: ending1/ending2/ending3/ending4