These books are both interesting and instructive．No wonder they _______ reading public．

These books are both interesting and instructive．No wonder they _______ reading public．

A.appeal for

B.appeal in

C.appeal to

D.appear on

答案及解析： C

解析：

句意为：“这些书既有意思又有意义，难怪他们对阅读者吸引力这么大。”