4980Which is NOT true of sparklers？ 查看材料A.They are harm2489

Which is NOT true of sparklers？ 查看材料 A.They are harmless to very young children. B.They are considered safe by many people. C.They are a threat to the eyes. D.They can bum at very high degrees Fahrenheit. 请帮忙给出正确答案和分析，谢谢！