—You won't believe it, Sam. I was chosen as an exchange student to China.  

—Congratulations! __________  [ ]

A. You got it.

B. You did a good job.

C. That's all right.

D. That's something.

在“草→兔→红狐→狼”这条食物链中，红狐所属的消费者类别及所占有的营养级分别是[ ]

A．初级消费者，第三营养级

B．次级消费者，第二营养级

C．次级消费者，第三营养级

D．三级清费者，第二营养级