Below are three pictures. Which one does not belong?

Come Monday. Autonomous air taxi aircraft will soon arrive. Will it be a Monday or a Wednesday? We don’t know exactly, but it will come. That is when it will finally become feasible for mass transportation using air taxis.

https://drive.google.com/drive/folders/1JbTahbpnoop5ztLmATHaBphh_qQ8XkiO?usp=share_link