Which of the following statements about languages in sub-saharan africa is true

a.
most countries have only one official language.
b.
many countries include at least one european language among their official languages.
c.
most countries have one common language spoken by almost all of their people.
d.
most languages spoken in the region are khoisan, or “click” languages

Sub-Saharan Africa is, geographically, the area of the continent of Africa that lies south of the Sahara. Most languages spoken in the region are Bantu. Although many mid-sized languages are used on the radio, in newspapers and in primary-school education, and some of the larger ones are considered national languages, only a few are official at the national level.Indo-European languages are spoken in South Africa and Namibia (Afrikaans, English, German) and are used as lingua francas in the former colonies. The answer to your question is that many countries include at least one European language among their official languages.

following type of cultural development caused people to want and buy new products on the market :

industrialization

That really sucks, but i don't know who your leader is, and i don't want to write that much