In two hours the polls will close. I know I should probably vote, but it is raining, and besides, there is a basketball game on TV tonight, so I'll just stay in. This person is exhibiting

decision making based on cost-benefit considerations.

Explanation:

A cost benefit consideration is a process used to analyse decisions. The person doing the analysis sums up the benefits of any situations and then eliminates the cost which is associated in performing that action.

In the context, the benefit is the moral obligatory to vote as a good citizen but cost in voting is that it is raining and there is a basketball game on the TV. So I am making a cost-benefit considerations while deciding whether to go out to vote or stay inside and watch the game.