Identify if the following statements are TRUE, FALSE or UNCERTAIN. Provide an explanation to Justify: a) "Developing countries' governments need to build more schools and hire more teachers in order to Increase the level of education."

b) "Improving the quality of education in rural parts of developing countries is difficult. Luckily, recent research has shown that there are cost-effective programs that can do so by targeting interventions to help students who are lagging behind."

c) "The reason why agricultural productivity is so low in many developing countries is because there are many farmers operating at a very small scale. Having fewer farmers and larger farms would help farmers benefit from economies of scale and improve agricultural GDP."