Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to use a credit card to order online [title] Connect to a secure, encrypted network. [substeps] Some browsers use the symbol of a closed padlock to denote a secure network connection. You can also look for " [https " https "] in front of the internet address, instead of the normal " [http, " http, "] to indicate a secure network.

Ending1: Separate your internet security information from your number. The code is set by the security rules of standard networks. Ending2: Some x86 users can shop at independent sites to easily find an online merchant, building up their merchant account. [title] Create a virtual shopping account with a debit card company that allows the hsps to run an unlimited time account. Ending3: Avoid sending credit card information by e-mail over an unsecured network. Although e-mail might seem private, it's all too easy for another user on the same network to monitor your transmission. Ending4: [title] Enter the information associated with your account onto the " sign up " field. [step] You may need to enter additional information if you wish to use a credit card to order online.

Answer format: ending1/ending2/ending3/ending4