Ryan opens a bank account with $50. Each month he deposits an amount that doubles his savings. Ryan gets $2 from the bank each month as an incentive for maintaining this savings pattern. Which recursive function represents the amount in Ryan's account in any month?
A: next = 2 x now + 2, starting at 50
B: next = 2 + 2, starting at 2
C: next = now + 2, starting at 50
D: next = 2 - now, starting at 50
E: next = 2 x now, starting at 2