Which of these statements must be true if a and b are integers from 2 to 5 including 2 and 5? Indicate all such statements.
(A) The perimeter of STUV will always be less than or equal 20 units.
(B) Side b is 2 units less than side a.
(C) The area of STUV at maximum value for b and minimum value for a is equal to the area of STUV at the minimum value for b and maximum value for a.
(D) At b=3, the area of STUV will always be less than or equal to 15 square units.
(E) The area of STUV decreases as b remains constant, α decreases and a increases.