Suppose we use a Python dictionary to store gradebooks of multiple courses. gradebooks = {'Course 1': [['Troy', 92], ['Alice', 95]], 'Course 2': [['James', 89], ['Charles', 100], ['Bryn', 59]], 'Course 3': [['Jack', 74], ['Karren', 97], ['Astha', 92], ['Nancy', 96]]} Use the builtin sorted function with appropriate programming constructs (e.g., lambdas, comprehensions, , etc.) to complete the following tasks: Write code to create a new list named gradebooks_a, with students of each course being sorted by score in descending order. The expected result is: [[['Alice', 95], ['Troy', 92]], [['Charles', 100], ['James', 89], ['Bryn', 59]], [['Karren', 97], ['Nancy', 96], ['Astha', 92], ['Jack', 74]]]

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