题目3单选题
求极限<img src="https://tihai-oss-cloud.itihey.com/img/c694cad8bad7a0730b848d2fbf32bb38.png">A. <img src="https://tihai-oss-cloud.itihey.com/img/c1ce2a07f4404b9725c5dba9c0f7e8fb.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/725c9955d8f0cf89934eeb0d1ef25dd3.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/7230a70282ca49b305190d30b3f8d028.png">D. 1