Choose the best option to transform into a 'Complex' sentence
It was a blue shirt worn by the investigating officer at the murder scene
1
It was a shirt which was blue that was worn by the investigating officer at the murder scene.
2
It was a shirt blue in colour that was worn by the investigating officer at the murder scene.
3
It wasn't a shirt which was blue that was worn by the investigating officer at the murder scene.
4
It was a shirt which was blue that were worn by the investigating officer at the murder scene.