The correct answer is: A. bettering.
The government’s economic policy includes certain projects for bettering the living conditions of the poor. This means that the government is trying to improve the lives of the poor by providing them with better housing, education, healthcare, and other essential services.
The other options are incorrect because they do not accurately reflect the government’s intentions. Option B, harmonising, means to make something consistent or uniform. This is not the government’s goal in relation to the poor. Option C, manipulating, means to control or influence someone or something in a dishonest or unfair way. This is also not the government’s goal in relation to the poor. Option D, doing away with, means to get rid of something. This is not the government’s goal in relation to the poor. The government wants to help the poor, not get rid of them.