Jim Enjoys the Feeling of Wind in His Hair Enough

Jim enjoys the feeling of wind in his hair enough to ride his motorcycle without a helmet, even though he fully realizes the potential for injury it creates by not wearing one in the unlikely event he is in an accident. To an economist, Jim is

A) making an irrational choice.
B) making a rational choice.
C) not fully considering the personal costs and benefits of his decision.
D) not responding to the incentives he faces.