The correct answer is: a) Data collection.
Census enumerators are responsible for collecting data from households and businesses for the census. This data is used to create a snapshot of the population and economy of the United States. The data is used to allocate federal funds, draw legislative districts, and track social and economic trends.
Data analysis is the process of cleaning, organizing, and summarizing data to make it easier to understand. Data analysis is used to identify patterns and trends in data. It is also used to make predictions about future events.
Report writing is the process of organizing and presenting data in a clear and concise way. Report writing is used to communicate the results of data analysis to stakeholders.
Policy formulation is the process of developing and implementing public policies. Policy formulation is used to address public problems and improve the lives of citizens.
In conclusion, census enumerators are responsible for collecting data, not data analysis, report writing, or policy formulation.