题目2单选题
函数<img src="https://tihai-oss-cloud.itihey.com/img/a4eaffcd686b97c64c791be8878fc68d.webp">的单调递增区间为:A. <img src="https://tihai-oss-cloud.itihey.com/img/945ba0b418c7c15507ab61f54044aaaa.webp">B. <img src="https://tihai-oss-cloud.itihey.com/img/f7a597cee9cea8ed849d0d16e29d3a9c.webp">C. <img src="https://tihai-oss-cloud.itihey.com/img/ef165fcac0bd3384d4d345ae8abd2fd1.webp">D. <img src="https://tihai-oss-cloud.itihey.com/img/f5a81fc25d4be4638af25450fe38b8d9.webp">