设<img src="https://static.zxtiku.com/wangke/imgs/topic/c77e991aea67f686a2e5c93cd57f5ddf.jpg"/> 在点 <img src="https://static.zxtiku.com/wangke/imgs/topic/d4532b6078dfbfa586aa93f8bca90ff1.jpg"/>可导，则<img src="https://static.zxtiku.com/wangke/imgs/topic/d95ad2f0dd2909890b0051bd01e210e6.jpg"/>=( ) <br/> A、<img src="https://static.zxtiku.com/wangke/imgs/topic/996a14034df772a845bbe75c59a33ac7.jpg"/><br/> B、<img src="https://static.zxtiku.com/wangke/imgs/topic/2613fd0fc81d679970fb1b549262a8ff.jpg"/><br/> C、<img src="https://static.zxtiku.com/wangke/imgs/topic/2e9329b7718408ba527863505e76749b.jpg"/><br/> D、<img src="https://static.zxtiku.com/wangke/imgs/topic/35b4cbb491d8d665a7e536db9aadbf84.jpg"/>