Answer: % money market; 30% long-term bonds; 5% commodities; 60% stocks, most with low dividends and high growth prospects (option D)
Explanation:
Since liquidity is not currently a major concern to the couple, investment in the money market can be low and also no investment is needed in the high dividend paying stocks.
Option A and C involve significant investment in the high dividend yielding stocks so they're ruled out. We are now left with Option B and D
Long term bonds usually pay less than the required rate that this couple is considering, therefore a significant amount must be invested in high yield return securities. This will make option D the right answer since it fulfils all the required objectives.