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Which of the following code blocks returns a new DataFrame where column managerName from DataFrame storesDF has had its null values replaced with the string "No Manager"?
A sample of DataFrame storesDF is below:
storeId managerName
0 Donec Enim
1 Ultrices Fringilla
2 null
3 Magna Ac
4 null
Which of the following code blocks returns a new DataFrame where column managerName from DataFrame storesDF has had its null values replaced with the string "No Manager"?
A sample of DataFrame storesDF is below:
storeId managerName
0 Donec Enim
1 Ultrices Fringilla
2 null
3 Magna Ac
4 null
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