Use the following information regarding an equal-weighted equity index

Security	Price at the End of 2009 ($)	Price at the End of 2010 ($)	Dividends per Share ($)
A	20	25	0.5
B	50	45	0.2
C	31.25	36	0.4
D	100	135	0.5

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

The number of shares for each security during 2010 was:

1. A - 125
2. B - 50
3. C - 80
4. D - 25

Note: The dollar value of the index on December 31, 2009 is $10,000 and using a divisor of 10, the index level equals 1,000.

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

1. 18.55%
2. 25 %
3. 19.35%