A couple has up to $30,000 to invest in mutual funds. The broker recommends investing in two funds based on their average annual return for the 5 years ending in December, 2012: the Xander Global Bond fund yielding 8% and the Yoren International Cap Growth fund yielding 12%. After some consideration the couple decides to invest at most $12,000 into the Yoren International Small Cap Growth fund and at least $6,000 in the Xander Global Bond fund. They also want the amount invested in the Xander Global fund to exceed or equal the amount invested in the Yoren International Small Cap Growth fund. What should the broker recommend if the couple wants to maximize the return on their investment?