The functionalist perspective is an important theoretical perspective of sociology which was first used by Emile Durkheim and the theory explained how a society remains stable. The theory suggests that society is not just the sum of all parts but each part of society contributes to the whole. Therefore each social institution contributes in some way for the stability of society. As per the question, big city political machines are part of political organization and thus contributes to the social needs.
1. Selective attention is simply interviewers noting the topics to which clients attend.
Explanation:
The phenomenon of the selective attention is the process of focusing on a particular a object in the environment and is over a certain period of time. And it also refers to the individual capacity to pay certain amounts of attention to the topics that one is attentive about.