C. <em>Official business is conducted in a language other than the local language</em>.
Many people in Sub-Saharan Africa grow up speaking the common dialect of their household or village, in which there are thousands. As they look for a career though, most businesses operate in either French or English. Thus, most Sub-Saharan Africans use their common dialect with their family and their business language in their workplace.
They used Paine's Common Sense to justify the American Revolution.
I'm not sure what your asking but after the vice president the speaker of the house becomes president