单项选择题:
An analyst does research about securities market indices and gathers the following information is about a value-weighted index prised of three non-dividend paying stocks:
31 December 2011 31 December 2010
Stock Share price Outstanding shares Share price Outstanding shares
1 $23.00 3400 $25.50 3400
9 $19.50 6600 $16.00 6600
3 $33.00 4600 $20.50 9200
If the index value on 31 December 2010 was 102.5, the index value on 31 December 2011 is closest to:（）
A. 99.7 B. 96.5 C. 108.8
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答案：B
解析: 102.5×(23.00×3400+19.50×6600+33.00×4600)/(25.50×3400+16.00×6600+20.50×9200) =102.5×358700/380900=96.5。