求助GWD数学一道！~

求助GWD数学一道！~

The sides of a square region, measured to the nearest centimeters, are 6 centimeters long.  The least possible value of the actual area of the square region is

A.    36.00 sq cm

B.     35.00 sq cm

C.     33.75 sq cm

D.    30.25 sq cm

E.     25.00 sq cm