The correct answer is C. Inter-temporal allocation of resources refers to allocation of resources over time.
Option A is incorrect because inter-temporal allocation of resources does not refer to timing of such decisions for better returns. It refers to the allocation of resources over time, regardless of when the decisions are made.
Option B is incorrect because inter-temporal allocation of resources does not refer to temporary allocation of resources. It refers to the allocation of resources over time, regardless of how long the resources are allocated for.
Option D is incorrect because inter-temporal allocation of resources does not refer to diversification of resources. It refers to the allocation of resources over time, regardless of how the resources are allocated.
Inter-temporal allocation of resources is a complex topic that has been studied by economists for many years. There are many different theories about how to allocate resources over time, and the best way to do so will vary depending on the specific situation. However, the basic idea of inter-temporal allocation of resources is to make sure that resources are allocated in a way that maximizes the benefits to society over time.