单选题 His assumption of wild animals" existence in the area has largely been ______ by more recent discoveries of fossils.
【正确答案】 C
【答案解析】[解析] believe"相信”,assure“确保”,confirm“证实”,inform“通知”。句意为“他关于那个地区存在野生动物的假设在很大程度上被近期发现的化石证实了”。故选C。