Only in the south.i hope this helps:)
Answer:
However, Nigeria's most diverse feature is its people. Hundreds of languages are spoken in the country, including Yoruba, Igbo, Fula, Hausa, Edo, Ibibio, Tiv, and English. The country has abundant natural resources, notably large deposits of petroleum and natural gas.
South and cause they wanted to continue their culture
the Marshall Plan(also known as The European Recovery Program) was an american initiative passed in 1948 to aid western Europe. the amount which USA paid was about 12billion dollars in economic assistance.
Most people during This time had large familys, familys that lived In the citys sent there kids to work at a young age so They could make more money