某同学在调查活动结束后，将有关的生物分成了动物、植物、其他生物等。他所采用的分类依据是[ ]

A．形态结构      

B．生活环境      

C．生物用途       

D．大小多少

People may have different opinions about Karen, but I admire her.___, she is a great musician.    [ ]

A. After all      

B. As a result    

C. In other words  

D. As usual