问题详情

Which of the following is NOT true about UGT2B17, according to the passage？
A．None, one or two working copies of UGT2B17 can be found in different people.
B．Test results would depend on numbers of working copies of UGT2B17.
C．Most Caucasians have no functional copies of UGT2B17.
D．Most Asians have no functional copies of UGT2B17.请帮忙给出正确答案和分析，谢谢！