Terrorism is a nasty thing, though cause by a few it can lead to all out what?\nOptions:\n- detonating bombs\n- help victims\n- death\n- sadness\n- war
Let's think step by step.
war
A nasty thing like terrorism may leads to the activities of war.

Though terrorism is caused by a few people but it can lead to war among all the people.

.

Final answer: war