Task: Question Answering
Input (English): Question: The cross-section of a cannel is a trapezium in shape. If the cannel is 6 m wide at the top and 4 m wide at the bottom and the area of cross-section is 10290 sq m, the depth of cannel is?

 Option A: 258

 Option B: 260

 Option C: 262

 Option D: 264

 Option E: 266
Output (English): Option A