Response B seems to encounter an error because the "expense_distributions_by_type.csv" file is missing, resulting in a FileNotFoundError. The code attempts to load this file to create the "type_percentage_distribution.csv" table, but since the file is not found, the code execution fails. Before proceeding, the missing file needs to be provided. Once the file is available, the code should be able to load it successfully and continue with creating the desired table and joining it with the "total_expenses_by_type.csv" table. However, due to the error, Response A appears to be a better option as it successfully completes the task without encountering any errors.