[单选题]
A person is standing onnig 5mxz-)64 q.haa aa a scale in an elevator acc9upf 4otj- 6knhhwo.m:-j:k lelerating downward. Compare the reading on the scokp- -u4h o6mw9h .: k:jltjfnale to the person's true weight.
A. greater than their true weight
B. equal to their true weight
C. less than their true weight
D. zero