The gross domestic product (GDP) in a Fultonland in 2012 is $8 billion.
The income received in 2012 by Fultonland residents from investment in Kingsland is $1 billion.
The income received in 2012 by Kingsland residents from investments in Fultonland is $500 million.
Using these abovementioned figures, the gross national income (GNI) for Fultonland in 2012 is
a. $8.5 billion
b. $8.6 billion
c. $8.41 billion
d. cannot be determined from the information given