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Wildcard General Knowledge Quiz for 28 November 2009

A new wildcard quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

Question 1: What is a key signature?

A
A Personal Identification Number used to enter a building
B
The sample signature that a bank uses to verify a customer's cheques
C
Combinations of sharps or flats at the beginning of each staff indicating the key of a composition
D
A specific pure DNA sample kept on permanent record by the FBI