A man holds a woman at gun point. In the other hand, he has a detonator for fifty pounds of C4 buried under an orphanage. You aren't allowed to move or speak or he'll pull the trigger and activate the C4. He tells you to say only one of two words, "C4" or "Her" and he'll spare that group but kill other(s). You have no chance of getting help and time is short. You must make a decision. What do you do?