Greta Thunberg is going by 'Sharon' now, thanks to a quiz show contestant's mix-up

The teenage climate activist formerly known as Greta Thunberg is going by Sharon now, after an unfortunate mix-up on a British quiz show. 

During an episode of BBC's Celebrity Mastermind, in which celebrities try to answer trivia questions, actress Amanda Henderson was tasked with naming a certain Time Person of the Year and...