Lance bought n notebooks that cost $0.75 each and p pens that cost $0.55 each. A 6.25% sales tax will be applied to the total cost. Which expression represents the total amount Lance paid, including tax?
A. 0.0625 (n + p) + 0.0625(0.75n + 0.55p)
B. (0.75n + 0.55p) + 0.0625(0.75 + 0.55p)
C. 0.75(0.0625n) + 0.55(0.0625n)
D.0.75(1.0625n) + 0.55(1.0625n)