Desa Invested a Certain Amount of Money at 4% Interest

Multiple Choice

Desa invested a certain amount of money at 4% interest and $2,500 more than that amount at 7%. Her total yearly interest was $835. How much did she invest at each rate?

A) $7,000 at 4% and $9,500 at 7%
B) $8,500 at 4% and $6,000 at 7%
C) $6,000 at 4% and $8,500 at 7%
D) $5,000 at 4% and $7,500 at 7%
E) $8,000 at 4% and $10,500 at 7%