You are by yourself. There are no other rescuers
You have the ability to rescue one of them
The man and the woman are of equal distance away from you
There is nothing stopping you from rescuing either one of them
Both the man or the woman are about to die within the same time frame
You have just enough time to rescue one of them
You have no affiliation with any of them
Both the man and the woman are of the same age and same social class
You have to rescue one of them. Who do you choose?