Eloise is investing in a retirement account. She plans on adding an additional $50 at the end of every year and the expected monthly rate of return is 3% of the amount invested, calculated at the end of the month. If she starts with $1000 in the account find an equation that models the amount of money in the account each month for the first year.
A) y = 50x + 1000
B) y = 1000(0.03)x
C) y = 1000(1.03)x
D) y = 50.03x + 1000