Answer:
The reason why most Sub-Saharan Aricans speak more than one language is B. Offical businesss is not conducted in the local langue.
Explanation:
The explanation of this answer might be a little bit biased but is the reality of the context. Sub Saharan Africa consists of its majority in former European colonies so that leads the inhabitants to not only adapt to their conquerors' systems, orders but also their languages and even though the majority of them are no longer colonies. However, because they learned much from their conquerors they adopted many o their ways to structure their society and systems and their languages remained in the society to be exercised in the majority of the businesses.
