Correct option is B
Both A and R are correct but R is not the correct explanation of A. Assertion A accurately observes the increasing use of contracting out and public-private partnerships in public services and decision-making, reflecting a shift towards more collaborative forms of governance. Reason R correctly notes the gap between the complexity of modern governance and the traditional normative frameworks used to understand and justify government actions. However, R does not directly explain why contracting out and public-private partnerships have become prevalent; rather, it speaks to a broader issue in governance and decision-making processes.