How much information is available for your chosen topic? If there is a huge amount of information, narrow your topic to be more specific. If there is too little information, broaden your topic.

a countries leader should be motivated by the common good of the country.

d

explanation:

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.