You will be given a definition of a task first, then some input of the task.
In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.

London, England (CNN) -- Britain's Prince William asked his girlfriend Kate Middleton to marry him, he said Tuesday, setting up the most anticipated royal wedding since Prince Charles and Diana, princess of Wales, got married nearly 30 years ago. William gave Diana's sapphire-and-diamond engagement ring to his fiancee when he popped the question during a vacation in Kenya last month, he said. "It's my mother's engagement ring, so of course it's very special to me, and Kate's now very special to me, so it was only right to put the two together," he said Tuesday. "It was a total shock" when the prince proposed, Middleton said, adding that she was very excited. "We were out there with friends and things, so I really didn't expect it at all."NEW: William's brother Harry is delighted to be getting a sister at last, he saysBoth the ring and Kate are "special to me," the prince saysThe engagment ring his mother, Diana, wore was last seen in public in 1996The wedding is planned for the spring or summer of 2011 
 Questions:William said there was "no pressure" for _ to emulate Diana. (A) London (B) England (C) CNN (D) Britain (E) William (F) Kate Middleton (G) Charles (H) Diana (I) Wales (J) Kenya (K) Harry
Output:
(F)