【正确答案】 A

【答案解析】[解析] 划线词词义是“引起，激发”。
A项caused意为引起，使发生；例句：Many diseases are caused by bacteria.许多疾病是由细菌引起的。
B项ignored意为忽视；例句：If there's one meal that is ignored nowadays, it is breakfast.如果有一顿饭被忽视的话，那就是早餐。
C项organized意为组织；例句：The meeting was badly organized.会议组织得很糟。
D项received意为收到。例句：He must start to question received opinion.他必须开始质疑自己已经接受的观点。
很明显A项正确。