下列变量组是一个闭回路的有（）。
A. （x11,x22,x34,x12,x24,x33）
B. （x11,x22,x24,x12,x31,x34）
C. （x21,x23,x12,x11,x32,x33）
D. （x11,x35,x42,x12,x43,x25,x23,x31）
E. （x33,x32,x12,x11,x21）
The world is not just divided into good people and Death Eaters. We’ve all got both light and dark inside of us. ___________ matters is the part we choose to act on.
A. What
B. Where
C. That
D. Which
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