The reason is to make a decision about the level of sufficiency is a necessity considering the relevant factors, as well as take into consideration the effects that are expected to arise from their actions carefully.
The realistic means to decide on the level of self-sufficiency. Must be rationally. By considering the factors involved As well as taking into account the results that are expected to arise from the action carefully.
As the rational (SOBs) means "decisions about the level of protection is simply. He must be a reason. By considering the factors involved. And realize the anticipated results of it carefully