Task: Question Answering
Input (English): Question: An equilateral triangle T2 is formed by joining the mid points of the sides of another equilateral triangle T1. A third equilateral triangle T3 is formed by joining the mid-points of T2 and this process is continued indefinitely. If each side of T1 is 50 cm, find the sum of the perimeters of all the triangles.

 Option A: 180 cm

 Option B: 220 cm

 Option C: 240 cm

 Option D: 270 cm

 Option E: 300 cm
Output (English): Option E