Line Command Line Options - AutoCAD

Question
When using the Line command, which option allows us to quickly create a line segment? Connecting back to the starting point?

Answer
When drawing in AutoCAD, watch the command prompts. By typing C for close and clicking enter on the keyboard a line segment will be created from the last point entered back to the start point. From AutoCAD 2013 onwards you can also just click on the word close in the bracketed options on the command bar.