单选题 What may contribute to the unfair use of concentrated power and wealth by some people?

A、 Their greed for profit makes them ignore the expense.
B、 They have accumulated too much wealth and power.
C、 They make profits by pretending to be blind.
D、 They make profits by cheatin

【正确答案】 A

【答案解析】[注释] 本题依据是第二段的第二句，关键部分是the unfair use of concentrated power and wealth in the hands of men whose eagerness for profit blinds them to the cost of what they do，意思是“权力不公正地集中在某些人的手里，出于对利润的渴望，他们对所付出的一切代价视而不见。”