P254 280

antonia

P254 280
The president of a consulting firm analyzed the decisions made about marketing by her clients and concluded that the decisions were correct only about half of the time. The conclusion above depends on the presupposition that
（E）        it is possible to classify a marketing decision properly as being either right or wrong.
能帮我分析一下这道题吗？conclusion 和evidence各是什么？答案为何是E？

linsonstudy

这题很明显了。decision可以又对又错就是其假设前提。