题目内容
（请给出正确答案）
[主观题]
126A plan has budgeted three weeks of effort for consultants, but the job was done in only
126 A plan has budgeted three weeks of effort for consultants, but the job was done in only two weeks. Calculate the variance:
A. 1.50%
B. 33%
C. 75%
D. 67%
E. None of the above
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