In a large open economy, the government spending increases by 10 billion. Which of the following changes for investment (I) and net export (NX) is most likely to happen in the long run? Group of answer choices I rises by 6 billion; NX falls by 4 billion. I falls by 4 billion; NX falls by 6 billion. I falls by 8 billion; NX remains unchanged. I falls by 5 billion; NX rises by 5 billion. I falls by 4 billion; NX falls by 5 billion