Part of $7,000 Is Invested at 10%, Another Part at 11

Multiple Choice

Part of $7,000 is invested at 10%, another part at 11%, and the remainder at 12% yearly interest. The total yearly income from the three investments is $795. The sum of the amounts invested at 10% and 11% equals the amount invested at 12%. How much is invested at each rate?

A) $1,000 at 10%, $2,500 at 11%, and $3,500 at 12%
B) $500 at 10%, $2,000 at 11%, and $4,000 at 12%
C) $1,500 at 10%, $2,000 at 11%, and $3,500 at 12%
D) $500 at 10%, $2,500 at 11%, and $4,000 at 12%
E) $1,500 at 10%, $3,000 at 11%, and $3,000 at 12%