Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to start a promotion company [title] Gain experience in promotional work. [step] Before starting a promotion company, you'll want to gain some experience in the area. One way to do so is to spend a few years working in an existing promotion company to learn the ropes and establish contacts.

Ending1: [substeps] Learn about the basic marketing and management techniques required to run a promotion company. You may want to train yourself in marketing or management to be able to refer to names and impressions of employees. Ending2: [substeps] Working for a company before beginning something new can require some years of experience working in data management, marketing and artistic office management. Once you've developed some experience in promotional work, you'll be able to start a promotion company instead of just opening up an existing one. Ending3: This will allow you to witness a number of large promotional campaigns from inception to end and build your experience, as well as your professional network. You will also avoid assuming any personal financial risk for shows when you work with a large company. Ending4: Before starting a promotion company, you'll need to be good at creating a strong image of yourself so that your company can do business with you and maybe even showcase your product even more. [substeps] Being aware of the lingo in the industry can set you apart from those of other sales people.

Answer format: ending1/ending2/ending3/ending4