Hich of the following expresses a complete thought? after they spoke to each other. although they said hello. as soon as they saw each other, they said hello. as soon as they recognized each other.

As soon as they saw each other, they said hello.

This shows a complete sentence where as the others are merely phrases

is basically a good source of getting and others by what you know for example if someone asked a question and you know the answer you could answer it and get some points or if you need on a question you could make a post about it and wait till someone answers it or just look up the question and see if someone else has asked about it

Main things could jappwn