A square has sides with lengths of (x-1) units. A rectangle has a length of x units and a with of (x-2) units. Which statements about the situation are true? Select all that apply.
a. The area of the square is (x^2-1) square units.
b. The area of the rectangle is x^2-2x square units.
c. The area of the square is greater than the area of the rectangle.
d. The value of x must be greater than 2.
e. The difference in the areas is 2x-1.