His failure to pay his debts________their opinion that he was not to be trusted.
【正确答案】 A
【答案解析】解析：confirm意为“证实、确定某种观点和说法的正确性”，A选项为正确答案，符合题意： “他没法偿还债务的事实更加证明了别人说他不值得信任的说法是正确的。”