Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

A significant challenge to investing in timber is most likely its:
Option A:high correlation with other asset classes.
Option B:dependence on an international competitive context.
Option C:return volatility compounded by financial market exposure.

Answer: B