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.

In defining asset classes as part of the strategic asset allocation decision, pairwise correlations within asset classes should generally be:
Option A:equal to correlations among asset classes.
Option B:lower than correlations among asset classes.
Option C:higher than correlations among asset classes.

Answer: C