单项选择题:
An analyst does research about pounding rate of return. An investor makes the following beginning-of-quarter deposit into an account with an initial balance of $0.
Quarter Amount
1 $25000
2 $15000
3 $10000
4 $5000
If the account earns a stated rate of return 8% per year pounded quarterly, the value of this account at the end of Quarter 4 is closest to:（）
A. $57336 B. $58483 C. $69972
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答案：B
解析:25000×(1+2%)4+15000×(1+2%)3+10000×(1+2%)2+5000×(1+2%)1= 27061+15918+10404+5100=58483。