Suppose Megan withdraws $75 from her savings account and deposits it into her checking account. This transaction causes M1 to:______
A. Increase by $75 and M2 to remain the same.
B. Decrease by $75 and M2 to remain the same.
C. Increase by $75 and M2 to decrease by $75.
D. Remain the same and M2 to increase by $75.