Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to find a writing agent [title] Improve your writing ability. [step] If you're just starting out, you'll need to work on your writing ability as you start the work of creating a portfolio. Ultimately, you'll want to fill your portfolio with some of the best samples of your work.

Ending1: Without working on your writing skills, it'll be tough building a portfolio that will impress a good agent. [substeps] Consider taking writing courses at a local college or university. Ending2: [substeps] Remember that you'll need a successful resume and a writing profile to get yourself heard and paid. The hiring manager should be interested in you as a writer, not an intern. Ending3: [substeps] Sales associates will look for your best work first. Write a long list of samples for them to buy. Ending4: This will serve as your portfolio as you apply to jobs, and your portfolio will serve as your registration to work as a freelance writer. [substeps] Focus on your writing ability as the application for agents.

Answer format: ending1/ending2/ending3/ending4