An important function of is to develop programs for rebuilding a nation’s economy.
a. the international monetary fund (imf)
b. the world bank
c. grameen bank
d. civil society organizations

The answer is World Bank or letter b. it aims to help poor countries out of poverty and closely works with the International Monetary Fund.  It provides financial assistance to poor countries in order to uplift their economy and help them develop.

answer; i believe the correct answer is (a) nigeria is the largest african crude (oil) supplier; /// so revenue from petroleum;