A:from which
B:in which
C:at which
D:for which
帮扶倒地的老人怕受诬告、购物怕买到假货、做生意怕客户赖账、看专家观点怕被忽悠、官员讲话怕有水分……这些“怕”产生的共同原因在于有些人的道德品质中缺失了( )