Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to write a creative marketing brief [title] Gather your team. [step] While you can write a creative marketing brief alone, gathering a team of advisors and experts within your company can ensure that you don't miss any important information. By writing the brief together, you'll be able to work simultaneously on different sections and complete the brief in a smaller amount of time.

Ending1: Having the necessary expertise to write the document by yourself is risky, as you'll be exposed to scams in reference to your individual industry. [substeps] If you have the research and expertise necessary, try to find someone else to write the brief for you. Ending2: [substeps] E-mail your advisor to check availability. If email is available, expand the list to include: phone numbers, email addresses, places of business, etc. Ending3: [title] Write a brief summary of your abbreviation. [step] Include the specific suffix-1 in. Ending4: In addition, you can check over each other's work to guarantee its quality. If you don't know who to include on this team, consider communications, research staff, and any experts on the subject matter of the brief.

Answer format: ending1/ending2/ending3/ending4