I want to know the answer to the following question:
What title and name did Elizabeth's father take upon becoming king?
All the background I'm provided with is that "Elizabeth was born at 02:40 (GMT) on 21 April 1926, during the reign of her paternal grandfather, King George V. Her father, Prince Albert, Duke of York (later King George VI), was the second son of the King.". Is that enough to answer the question?
Answer: yes