<human>: Here is a goal: How to Care for a Pet Duck

Which way makes more sense to accomplish this goal?

OPTIONS:
- Feed ducklings and adolescent ducks a diet that is 18-20% protein.
- Feed ducklings and adolescent ducks a diet that is 18-20% bread.
<bot>: Feed ducklings and adolescent ducks a diet that is 18-20% protein.