Mina put $1,500 into her savings account in February. In March, she put twice as much money into her savings account as she put in February. Which expression could be used to find out how much she has saved altogether? A. 15,000 + 1,500

B. 2,500 + 150

C. 2(n + 1,500)

D. 2(1,500) + 1,500