Detailed Instructions: Use a disfluent question or a proper question and find the answer to the question based on the given context or return None if an answer can't be found. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
Q: proper question: Who announced she would step down as leader of the Conservatives? 
 disfluent question: When did no who announced she would step down as leader of the Conservatives? 
 context: For the Conservatives, the main disappointment was the loss of Edinburgh Pentlands, the seat of former party leader David McLetchie, to the SNP. McLetchie was elected on the Lothian regional list and the Conservatives suffered a net loss of five seats, with leader Annabel Goldie claiming that their support had held firm. Nevertheless, she too announced she would step down as leader of the party. Cameron congratulated the SNP on their victory but vowed to campaign for the Union in the independence referendum.
A:
Annabel Goldie