Paul deposits 100 into an account at the end of each 5-year period for 50 years. The account credits interest at an annual effective interest rate of i The accumulated amount in the account at the end of 50 years is X, which is 6 times the accumulated amount in the account at the end of 25 years. Calculate X Select one: OA 7119 OB. 5521 OC 6320 OD. 7922 O E 8720