The correct answer is B. Dask.
Dask is a Python library that provides high-performance parallel computing capabilities. It is often used for data analysis in the financial sector, as it can handle large datasets and complex data structures. Dask can be used to parallelize tasks such as data loading, cleaning, and analysis. This can significantly speed up the processing of large datasets.
Seaborn is a Python library for statistical visualization. It is built on top of Matplotlib, but provides a higher-level API that makes it easier to create complex visualizations. Seaborn is often used for data analysis in the financial sector, as it can be used to create visualizations that are both informative and aesthetically pleasing.
Matplotlib is a Python library for 2D plotting. It is a powerful and flexible library that can be used to create a wide variety of plots. Matplotlib is often used for data analysis in the financial sector, as it can be used to create plots that are both informative and aesthetically pleasing.
However, Dask is a better choice for data analysis in the financial sector, as it provides high-performance parallel computing capabilities. This can significantly speed up the processing of large datasets.