A rectangular sign that has dimensions 9\:m by 16\:m has a square advertisement painted on it. The border around the square is required to be at least 1.5\:m wide. The area of the largest square advertisement that can be painted on the sign is
Answer Choices
A. 78\:m^2
B. 144\:m^2
C. 36\:m^2
D. 9\:m^2
E. 56.25\:m^2