Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use facebook efficiently [title] Limit your network to connect only with family and friends. [step] You'll have to use discipline to limit who you connect to, but you can control who sends you friend requests. Click the down arrow at the top right of your screen and choose " settings.

Ending1: " on that menu, select " network/group. " in the group option, enter your friends' account information. Ending2: " [substeps] Every number you have installed on your facebook will be set. You won't be able to completely control who you connect to your facebook account at any time. Ending3: " once this selection is set, you will see an option titled " security settings. " [title] Understand the restrictions and rewards that facebook has set. Ending4: " look for " who can send you friend requests " and click " edit. " choose " friends of friends " from the drop-down menu.

Answer format: ending1/ending2/ending3/ending4