Definition: This task involves asking a question, providing a set of 2 options. You are expected to choose the best answer to the question. The output will be in the form of A or B, corresponding to which option is chosen.
Input: Question:What is the name of the A1 Pacific steam locomotive which was completed in 2009 and is the first of its kind built for over 50 years? ,  Options: [A.hurricane B.tornado] 
Output:
B