Last year the ration of males and females is 48% to 52%. By the year the population of males is increased by 6% and that of females is 9%. The increase in population is?

1. A Option A: 6.50%
2. B Option B: 7.50%
3. C Option C: 7.56%
4. D Option D: 8%
5. E Option E: 10%

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