1. Founded in 1983, the magazine increased its circulation more than double since then, and its advertising. (A) increased its circulation more than double since then, (B) has since increased its circulation more than double, (C) has since more than doubled its circulation (D) since then more than doubled its circulation（C）
(E) more than doubled its circulation since then why c? since 可以这样用啊。不懂啊。 | 
