已知<img src="https://static.zxtiku.com/wangke/imgs/topic/06a197685a36cbb38b18cfaddeefb8cc.jpg"/>，像函数为（）。 A. <img src="https://static.zxtiku.com/wangke/imgs/topic/a769bb80a3c67c41a75b462433ecc5a8.jpg"/> B. <img src="https://static.zxtiku.com/wangke/imgs/topic/aa27fa7b9dc9621a923838bc5417ead8.jpg"/> C. <img src="https://static.zxtiku.com/wangke/imgs/topic/f7bab94f6a91949ced94468aff43acc1.jpg"/> D. <img src="https://static.zxtiku.com/wangke/imgs/topic/9db4982da80a98cba76ff4b305966ac6.jpg"/>