问题详情

What does Dr. Thomas probably think about the cost of the new weight？
A．It is a small amount to pay for so much precious metal.
B．It is difficult to judge the value of such an object.
C．It is reasonable for an object with such an important function.
D．It is too high for such a light weight.请帮忙给出正确答案和分析，谢谢！