Task: Question Answering
Input (English): Question: The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 70 sq. cm. Find the length of the rectangle.

 Option A: 12cm

 Option B: 14cm

 Option C: 16cm

 Option D: 18cm

 Option E: 20cm
Output (English): Option D