Use the following information relating to a market-capitalization-weighted equity index:

Security	Shares Outstanding	Price at the End of 2009 ($)	Price at the End of 2010 ($)	Dividends per Share ($)
A	4,000	30	36	0.85
B	12,000	25	21	2.15
C	7,000	40	47	1.12

Assume that all dividend payments are made at the end of the year.

The weight of Security A in the index on December 31, 2010 is closest to:

1. 19.86%
2. 17.14%
3. 18.27%