Which of the Following Best Characterizes the History of Development

Which of the following best characterizes the history of development projects in the years since independence?

A) They have generally not been successful.
B) After a poor start,their success improved dramatically in the mid 1960s.
C) They were highly successful until the end of the Cold War but have generally failed since that time.
D) They have been highly successful in Latin America and Africa but failed elsewhere in the world.
E) Though there have been a few failures,development efforts have generally been highly successful.