The correct options are
A These countries depend on agriculture.
B They are lagging in areas like science, technology, and education.
C The countries do not have enough capital for developing their infrastructure.
Former colonies of the world suffered in the area of science, technology, and education. They were often referred to as "Third World Countries". They suffered from food shortages and lack of medical facilities. Capital required to build infrastructure and educational institutions was also scarce in third world nations.