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A homework assignment is a Pandas Series object with student names as index and their homework scores as values. How would you retrieve the name

A homework assignment is a Pandas Series object with student names as index and their homework scores as values. How would you retrieve the name only of the person who comes last when placed in alphabetical order?

A. hw.sort_index().tail(1).values[0]

B. hw.sort_index(ascending=False)[[0]]

C. hw.sort_index().tail(1)

D. hw.sort_index().tail(1).index[0]

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