You are nearby a set of trolley tracks. You notice that the trolley is headed towards a box on the tracks. You immediately recognize that the box is a container for 472 embryos and that the trolley is about slam into them destroying them all. Ahead of the box is a split of the tracks to a side track where a young woman stands. You immediately recognize that you can pull a lever and divert the trolley so that it kills the young woman, thereby avoiding the box. What do you do?