Which of the following transactions would be classified as an internal exchange transaction?

1. The General Fund transfers $300,000 to stablish a Central Supplies Fund; this amount will not be repaid
2. The General Fund transfers $155,000 to the Debt Service Fund for payment of currently due bond interest payments
3. The Capital Projects Fund completes a library building project and transfers the remaining cash to the Debt Service Fund
4. The General Fund orders and receives supplies from the Central Supplies Fund in the amount of $10,000