(做)某件事的目的是: intention to, intended to 某人的目的是:intention of Asset allocators have the intention of doing sth. The intention of creating portfolios is to do sth. OR. Portfolio creation is intended to do sth. 上面选项A)中,with后的intention属于主句中的主语asset allocators,所以后面应跟of doing sth. C)中,intended无论是修饰portfolio或mutual funds或整个句子,后面都是to。所以选C)。