从四个选项选择最合适的一个填入问号处。使之呈现一定的规律性：（　　）。

A、<img width="35" height="36" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/7a795c05-1005-4b47-b391-95e4586bf153.png" />

B、<img width="41" height="38" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/0542c4b0-042a-4172-9dc1-8d078f753375.png" />

C、<img width="36" height="37" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/8ee6be4e-1b03-4951-84b7-e99a70e908e6.png" />

D、<img width="36" height="35" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/6028d9ad-6cab-42ca-819a-e813f8223e5c.png" />