What was the most shocking moment of WrestleMania 34?

The Undertaker returning to answer John Cena's challenge

Charlotte Flair breaking Asuka's undefeated streak to retain the SmackDown Women's Championship

Braun Strowman winning the Raw Tag Team Championships with an audience member as his partner

Shinsuke Nakamura attacking AJ Styles after their WWE Championship Match

Brock Lesnar brutalizing Roman Reigns to retain the Universal Championship