Using the distributive property, which number sentence represents the total area of the rectangle?
A) 4 x 5 = 20 square units
B) (4 x 3) + (4 x 2) = 20 square units
C) (4 x 3) + (3 x 2) = 18 square units
D) (4 x 3) + (4 x 3) = 24 square units