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.

Question:What Scottish city is at the confluence of the rivers Dee and Don? ,  Options: [A.Aberdeen B.Scotland] 
A

Question:Which country shares a 530 km border with Saudi Arabia on the west, south, and southeast, a 450 km border with Oman on the southeast and northeast, and a smaller border with Qatar in the northwest? ,  Options: [A.India B.United Arab Emirates]  
B

Question:What tune do the bells of Big Ben chime? ,  Options: [A.four notes from handel s messiah B.UK Parliament] 

B