Karen is a school principal. she has been collecting data all year regarding the benefits and costs of an after-school community service program. she thinks the program is effective but must make a decision about whether or not the outcomes of the program for the children justify the cost. she collects data from the students, parents, and those that have benefited from the program to assist in making her decision. karen is engaging in which type of research?

Value economics capital scarcity opportunity cost wealth labor trade-offs standard of living good a. condition of not having enough resources to produce all the things people want b. alternative choices made by consumers in the marketplace c. sum of those economic products that are tangible, scarce, useful, and transferable d. tools, equipment, machinery, and factories used in the production of goods and services e. tangible item that is economically useful or that satisfies an economic want f. quality of life based on the ownership of the necessities and luxuries that make life easier g. people with all their efforts, abilities, and skills h. cost of the next-best alternative use of money, time, or resources when one choice is made rather than another i. study of how people try to satisfy their needs through the careful use of scarce resources j. worth that can be expressed in dollars and cents