Please choose the correct ending to complete the given sentence: Work World: [header] How to become a historian [title] Develop your reading and writing skills in high school. [step] Select additional history or english courses as your electives. Take as many advanced placement (ap) courses as you can.

Ending1: If you've already earned a degree in high school in a subject, it might be helpful to take courses in other subjects as well. If you don't have a solid foundation in high school, look for independent courses at your local library. Ending2: These will help to prepare you for college-level essay writing. Join clubs that emphasize critical thinking and the use of evidence, such as mock trial. Ending3: It is recommended that you pre-register for these before high school. If you do not already have free time in your schedule, take two to three. Ending4: If possible, pick classes with a history section. To develop your reading and writing skills as you go, consider taking a course that is held in a public school.

Answer format: ending1/ending2/ending3/ending4