Maria Has $12,000 to Invest for One Year $\frac { 1 } { 3 }$

Maria has $12,000 to invest for one year. Investment A pays 7% interest for the year, and investment B pays 10% interest. She invests $\frac { 1 } { 3 }$ of the money at 7% and $\frac { 2 } { 3 }$ of the money at 10%. Find how much she earns.

A) $1,090
B) $1,120
C) $1,100
D) $1,110
E) $1,080