Please choose the correct ending to complete the given sentence: Work World: [header] How to grow rapidly in a career [title] Familiarize yourself with your company's hierarchy. [step] Get to know how your company is organized and learn about its key positions. Find out those positions' functions and identify who occupies them.

Ending1: Finally, fill out an initial form and look for job opportunities. [substeps] In a corporate environment, leadership positions are often position for someone who has the knowledge to identify solutions to complex problems. Ending2: Listen to that information about your company so you can take advantage of them when you move up to corporate or other businesses. [title] Figure out what services will be required for your company. Ending3: [substeps] Understanding the hierarchical structure will help you learn more about potential advancement opportunities. You'll also get a better feel for the company's decision making processes. Ending4: Knowing the hierarchy is crucial during any future employment when you are working on projects. You will use this information to come up with a business plan.

Answer format: ending1/ending2/ending3/ending4