I want to know the answer to the following question:
Hakka is a language from what geographic part of China?
All the background I'm provided with is that "As a series of migration to the south throughout the history, the regional languages of the south, including Xiang, Wu, Gan, Min, Yue (Cantonese), and Hakka often show traces of Old Chinese or Middle Chinese.". Is that enough to answer the question?