圆轮绕定轴O匀速转动,某瞬时轮缘上一点的速度为v,加速度为a,如图所示。试问下列哪些情况是可能的(  )。

A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15396777903372bdcc507990143908ff5ed3eb59192a9.png" alt="上传图片">

B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1539677806142e55d68cbeac84ed1b0a63b844498563a.png" alt="上传图片">

C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15396778186472f6d9b5c8f22408fadfd5dd8c73abab6.png" alt="上传图片">

D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15396778332412de04ff388f7490d85ace2afade88256.png" alt="上传图片">