Aman invests a certain amount of money at 2% interest and $800 more than that amount in another account at 4% interest. at the end of one year, he earned $92 in interest. how much money was invested in each account?
a) $1,500 at 2%; $2,300 at 4%
b) $1,400 at 2%; $2,200 at 4%
c) $1,000 at 2%; $1,800 at 4%