How to Decide Which Explanation to Adopt

If the decision requires thought, then each option must be associated with an explanation. So how does one decide which explanation to adopt? And then he goes on to criticise the common sense in view that mainsor weighs one's options up. One chooses the best explanation, refuting all the others. We have an explanation for our decision that decisively rules out the alternatives. The world simply is not predictable in the way rational choice would have it be.