12. Chris makes annual deposits into a bank account at the beginning of each year for 20 years. Chris's initial deposit is equal to 100, with each subsequent deposit k% greater than the previous year's deposit. The bank credits interest at an annual effective rate of 5%. At the end of 20 years, the accumulated amount in Chris' account is equal to 7276.35. Given k>5, calculate k. B. 8.21 C. 8.36 A. 8.06 8.68 D. 8.51 E