Pens, more class.
Some dilemma's:
A trolley is rolling down the track and will hit 5 people, but if you press the button the trolley will switch track and hit 2 people, what will you do?
Second dilemma:
You're on the track and the trolley is rolling down towards you and you can't get off the track. However if you press the button the trolley will wtich track and hit 5 people, what will you do?