C是正确答案.
以下证据来自于《新编英语语法》（修订本）（下册）主编：章振邦,第1391-1392页.
1)no less than=as much as一样多
no more than=as few/little as和...一样少,此处的more是many/much的比较级.
2)no more ...than含义是前后否定,“和...一样不...”.如：
He is no more courageous than you are.他和你一样不勇敢.
也可以用not...any more than 表示：
He is not courageous,any more than you are.
3)同样,no...any more than 也表示前后否定,“和...一样不...”如：
At first glance,it looks as if there is no element of "present involvement" in this use of the Present Perfect,any more than there is in the Simple Past.乍一看,这儿用现在完成时好象没有“涉及现在”的成分,就象在一般过去时里没有“涉及现在”的成分一样.
(注意,no...any more than 和not...any more than的区别是：no后接名词)
本题翻译如下：
Stress is a natural part of everyday life and there is no way you can avoid it ,(any more than )you can avoid being hungry.压力是日常生活的平常事,你没有办法避免压力,就象你没法避免肚子饿一样.