If Imports Are $100 Million Less Than Exports, Government Expenditures

If imports are $100 million less than exports, government expenditures are $500 million, consumer expenditures are $1 billion, and gross investment spending is $500 million, then GDP is

A) $1.9 billion.
B) $1 billion.
C) $2 billion.
D) $2.1 billion.