Among the four maxims introduced by Grice, which one means that in conversation we should be as informative as required

单项选择题The Australian National Day is chosen to commemorate

单项选择题What are the components of the British Parliament

单项选择题______ is the American president during The Great DePression who proposed New Deal.

单项选择题Richard Brinsley Sheridan's has been called a great comedy of manners.

单项选择题______ is the only Canadian province with a predominantly French-speaking population.