Which of the following best describes the difference between a Pandas Series and a NumPy ndarray?
1
A Pandas Series allows labeled indexing, whereas a NumPy ndarray only supports integer-based indexing.
2
A NumPy ndarray supports missing values, whereas Pandas Series does not.
3
A Pandas Series always requires a predefined index, whereas NumPy ndarray does not.
4
Operations on Pandas Series are slower due to label-based indexing compared to NumPy arrays.