Cities cannot keep up with population growth to provide the services people need
Diary and artifact.
Primary Sources come from the original time or event. A diary represents a first-hand account of something by the original person. An artifact does virtually the same thing, being from that time period. All the other choices are incorrect because they are often told in a way that changes the original story or event.
Because during the election he promised a lot of things to the people so as soon as he went into office he just hit the ground running