Q: 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:In June 2010, 8 highly endangered monkeys (4 cottontop tamarins and 4 pygmy marmosets) were stolen from the Symbio Wildlife Park in which country?,  Options: [A.Australia B.Cotton-top tamarin] 
A:
B