问题：
[单选题]要使文件列表框中的文件随目录列表框中所选择的当前目录的不同而发生变化，应该（ ）。
A、在File1中的Change事件中,输入File1.Path=Dir1.Path
B、在Dir1中的Change事件中,输入File1.Path=Dir1.Path
C、在File1中的Change事件中,输入Dir1.Path=File1.Path
D、在Dir1中的Change事件中,输入Dir1.Path=File1.Path
参考答案：
B
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