求教一道语法题Consumers may not think of household cleaning products to be hazadous substances,but many of them can be harmful to health,especially if they are used improperly. hazadous substances,but many of them can be harmful to health,especially if they are used improperly.A Consumers may not think of household cleaning products to be B Consumers mey not think of household cleaning products being C A consumer may not think of their household cleaning products being D A consumer may not think of household cleaning products as E Household cleaning products may not be thought of by consumers,as 答案 D 为什么泛指换成了特指？ | 
