题目内容

过去。大多数航空公司都尽量减轻飞机的重量，从而达到节省燃油的目的。那时最安全的飞机座椅是非常重的，因此只安装很少的这类座椅。今年，最安全的座椅卖得最好。这非常明显地证明，现在的航空公司在安全和省油这两方面更倾向重视安全了。以下哪项，如果为真，能够最有力地削弱上述结论

A. 去年销售量最大的飞机座椅并不是最安全的座椅。
B. 所有航空公司总是宣称它们比其他公司更加重视安全。
C. 与安全座椅销售不好的那些年比，今年的油价有所提高。
D. 由于原材料成本提高，今年的座椅价格比以往都贵。
E. 由于技术创新，今年最安全的座椅反而比一般座椅的重量轻。

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