Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use bookboard [title] Sign up for a free account with bookboard. [step] Go to, enter your email address, and you'll receive a confirmation email with a link to complete your account setup. [substeps] If the email does not arrive after a couple minutes, check your spam folder.

Ending1: Find the link to login to bookboard. Click the " sign up " button and you'll receive an email confirmation with a link to complete your account setup process. Ending2: You should see a link detailing a free account account on the main menu at the top of the page. Tap on this link, and it will redirect you to another page with the information you need to get started. Ending3: [title] Click on the link in the email. [step] This will guide you through three easy steps. Ending4: If you see anything incriminating inside, delete it from your servers. Otherwise, you can run an internet search for anything suspicious.

Answer format: ending1/ending2/ending3/ending4