What is a key difference between reservation buying and auction buying?

1. Reservation buying means pre-packaged lineups, while auction buying is for individual impressions.
2. Reservation buying is done programmatically, while auction buying is done manually.
3. Reservation buying is done manually, while auction buying is done through a Google representative.
4. Reservation buying includes hard-to-sell inventory, while auction buying does not.

Correct Answer:

• Reservation buying means pre-packaged lineups, while auction buying is for individual impressions.