A politician is interested in implementing a statewide welfare reform program. By providing welfare recipients with extensive job training, she believes that the number of welfare recipients will decrease. As a side benefit, she also believes that the crime rate will drop. In response, a researcher argues that the crime rate would indeed drop; however, the cost of this drop would be too high. Other cheaper alternatives could be utilized to reduce the level of crime. This researcher's work is an evaluation of:
a.Need
b.Process
c.Impact
d.Efficiency
e.Knowledge