题目

Fireworks explosions killed many people and injured hundreds more in China as the 2006 traditional Lunar New Year celebrations led to much disorder as well as joy across the nation.     At a temple fair in Henan, 36 people were killed on New Year's Day when a nearby storeroom full of fireworks exploded. The accident, caused by 3 children who threw burning fireworks into the storeroom, injured up to 48 people.     In the capital, Beijing, where a 12-year ban on Lunar New Year fireworks had just been lifted, the government reported 112 people were treated at hospital emergency rooms over 复数z=（i为虚数单位），则|z|（　　）A．25 B． C．5 D．