单项选择题
A.针对AuthorPagaspx页的OutputCache指令中添加下列元素:VaryByParam="BookTopics.AuthorProfile"
B.针对AuthorPagaspx页的OutputCache指令中添加下列元素:VaryByControl="BookTopics.AuthorProfile"
C.针对BookTopics.ascx的OutputCache指令中添加下列元素:VaryByParam="none"
D.针对BookTopics.ascx的OutputCache指令中添加下列元素:VaryByControl="authorProfileID"