Task: Question Answering
Input (English): Question: The length of a rectangle is two - fifths of the radius of a circle. The radius of the circle is equal to the side of the square, whose area is 6400 sq.units. What is the area (in sq.units) of the rectangle if the rectangle if the breadth is 10 units?

 Option A: 140 sq.units

 Option B: 320 sq.units

 Option C: 367sq.units

 Option D: 178sq.units

 Option E: 176sq.units
Output (English): Option B