It is indeed the 3rd kit.
Quite a bad selection in fairness. How can you have all 3 kits the same colour??
If the team they're playing play in yellow they wear the green one, if they play in green they wear the stripy one, but thats got green in it so i don't know if they would be able to, they're all fucking horrible either way. Maybe the third shirt is for if they decide to have a game of rugby instead?