Which of the following shows the correct process of solving −3^0 + 4.5 ?

A: -3^0 + 4.5 = -3 + 4.5 = 1.5
B: -3^0 + 4.5 = -1 x 3^0 + 4.5 = -1 x 1 + 4.5 = -1 + 4.5 = 3.5
C: -3^0 + 4.5 = -3 x 0 + 4.5 = 0 + 4.5 = 4.5
D: -3^0 + 4.5 = (-3)^0 + 4.5 = 1 + 4.5 = 5.5

The correct process of solving −3^0 + 4.5 is D: -3^0 + 4.5 = (-3)^0 + 4.5 = 1 + 4.5 = 5.5