理解的偏差,选项中The first describes evidence that has been taken as supporting a conclusion 中the conclusion指的是人们从第一句这一事实中得到的结论.They reason that,since top executives evidently have faith in the bank’s financial soundness,those worrisome rumors must be false.
若果要说全段结论就是黄色部分Such reasoning might well be overoptimistic,however,since corporate executives have been known to buy shares in their own company in a calculated attempt to dispel negative rumors about the company’s health.
Since后面都是支持结论的原因了.