Subject: mathqa
Question: if x dollars is invested at 10 percent for one year and y dollars is invested at 8 percent for one year , the annual income from the 10 percent investment will exceed the annual income from the 8 percent investment by $ 38 . if $ 2,000 is the total amount invested , how much is invested at 8 percent ?
Option: 
A: $ 900
B: $ 1100
C: $ 800
D: $ 1200
Answer: A