Ms. Osborne asks each student in her class to draw a rectangle with integral side lengths and a perimeter of $$50$$ units. All of her students calculate the area of the rectangle they draw. What is the difference between the largest and smallest possible areas of the rectangles? 
选项为:A:$$76$$  B:$$120$$  C:$$128$$  D:$$132$$  E:$$136$$  请回答其中一个选项.