"Which asset allocation is BEST for a 35-year old single risk tolerant investor looking to achieve the highest returns?"

95% stocks /5% Money Markets

Explanation:

It is advisable for an investor that is relatively risk tolerant should consider devoting more of their money into stocks based investment, especially for a young, single investor who is willing to achieve highest return such that such an investor will be more likely to stay invested during the short periods of bear market fluctuations

Investment should be made based on the asset allocation plan. For a person looking to make high returns in about 20 years, he does not need to be very concerned about the stock market short-term fluctuations, compared to a person  looking to put their ward through college in a few years time who should be more inclined to fixed income safer investments.

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answer; only identify and interpret trends in the marketplace;