Which term describes the part of a file name after the period that indicates which application can create or open it? O CSV
O path
O extension
O delimiter

Extension because blah blah blah Im just jk but since I think its extension so I thought I’d let you know :)

Social networking sites d. online forumsthe first recognizable social media site,  six  degrees, was created in 1997. it enabled users to upload a profile and make friends with other users. in 1999, the first blogging sites became popular, creating a social media sensation that's still popular today.