Task: Question Answering
Input (English): Question: It is required to fix a pipe such that water flowing through it at a speed of 7 metres per minute fills a tank of capacity 880 cubic metres in 10 minutes. The inner radius of the pipe should be :

 Option A: √2 m

 Option B: 2 m

 Option C: 1⁄2 m

 Option D: 1⁄√2 m

 Option E: None of these
Output (English): Option B