以C为根音构成的小三和弦是： A. <br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/db10a5f144ddfaaa30851c793ca687d1.jpg"/> B. <br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/54112c49e74ff39518b01ae464aeb745.jpg"/> C. <br/> <img src="https://static.pphuashu.com/wangke/imgs/topic/8dfd7482fa1e19826b43e1339b082cdd.jpg.png"/> D. <br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/8e7aa0eb2793fd0edfe99801b11d3ddf.jpg"/>