An analyst does research about security market indices and gathers the following information about market-capitalization-weighted index consisting of the shares of three companies:
| Company | Beginning
Share Prices | Ending
Share Prices | Dividends
Per Share | Shares
Outstanding |
|
|
| A | $26 | $21 | $1.60 | 300 |
| B | $51 | $46 | $2.10 | 300 |
| C | $11 | $13 | $3.10 | 400 |
The price retum on the index is closest to:（）
A. -16.55%
B. -8.00%
C. 0.55%