Which choice demonstrates both the perimeter and the area of the rectangle shown in the accompanying diagram?

a
perimeter = 4x + 4 and area = (x + 6)(x - 4)

b
area = 4x + 4 and perimeter = (x + 6)(x - 4)

c
perimeter = 2x + 2 and area = x2 – 24

d
area = 2x + 2 and perimeter = x2 – 24