单选题 For a 250-day investment security, if effective annual yield of 12.9%, then the money market yield is closest to:
A. 6.02%
B. 12.48%
C. 12.66%

【正确答案】 B
【答案解析】[解析] effective annual yield=(1+holding period yield)365/n-1
holding period yield=(1+effective annual yield)n/365-1
money market yield=holding period yield×360/n
HPY=(1+12.9%)250/365-1=8.67%,rMM=8.67%×360/250=12.48%。