Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to open a mortgage company [title] Learn about the mortgage industry. [step] If you are not already in the industry, then you will need to understand it more fully before going into business. Take time to read about how mortgages are structured, including things like escrow, interest calculations, and various penalties and fees.

Ending1: Then, you may go to other companies and increase your knowledge by finding out about how to use your finances. [substeps] If you are looking for retirement or consolidation agreements, then this can help you to get comfortable using the mortgage company. Ending2: [title] Look for mortgage brokers in your area. [step] The types of brokerages companies have can change based on the amount of experience they provide. Ending3: [substeps] Start researching by purchasing a part of the company's name, advertising, and salaries. You will be shown where the company's choices might lead you. Ending4: Then, look at the players in the industry, from large banks to private mortgage brokers. After that, take a look at the overall state of the industry.

Answer format: ending1/ending2/ending3/ending4